Monitoring stellar orbits around the Massive Black Hole in the Galactic Center

Abstract

We present the results of 16 years of monitoring stellar orbits around the massive black hole in center of the Milky Way using high resolution NIR techniques. This work refines our previous analysis mainly by greatly improving the definition of the coordinate system, which reaches a long-term astrometric accuracy of 300 microarcsecond, and by investigating in detail the individual systematic error contributions. The combination of a long time baseline and the excellent astrometric accuracy of adaptive optics data allow us to determine orbits of 28 stars, including the star S2, which has completed a full revolution since our monitoring began. Our main results are: all stellar orbits are fit extremely well by a single point mass potential to within the astrometric uncertainties, which are now 6 times better than in previous studies. The central object mass is (4.31 +- 0.06|stat +- 0.36|R0) * 10^6 M_sun where the fractional statistical error of 1.5 percent is nearly independent from R0 and the main uncertainty is due to the uncertainty in R0. Our current best estimate for the distance to the Galactic Center is R0 = 8.33 +- 0.35 kpc. The dominant errors in this value is systematic. The mass scales with distance as (3.95 +- 0.06) * 10^6 M_sun * (R0/8kpc)^2.19. The orientations of orbital angular momenta for stars in the central arcsecond are random. We identify six of the stars with orbital solutions as late type stars, and six early-type stars as members of the clockwise rotating disk system, as was previously proposed. We constrain the extended dark mass enclosed between the pericenter and apocenter of S2 at less than 0.066, at the 99% confidence level, of the mass of Sgr A*. This is two orders of magnitudes larger than what one would expect from other theoretical and observational estimates.

accepted for publication in ApJ, submitted on April 29, 35 pages, 21 figures

References in corpus (11)

• The Two Young Star Disks in the Central Parsec of the Galaxy: Properties, Dynamics and Formation
• The structure of the nuclear stellar cluster of the Milky Way
• Stellar remnants in galactic nuclei: mass segregation
• Implementing Few-Body Algorithmic Regularization with Post-Newtonian Terms
• Kinematics of the old stellar population at the Galactic Center
• The evolution of misaligned accretion discs and spinning black holes
• A polarised infrared flare from Sagittarius A* and the signatures of orbiting plasma hotspots
• The distance to the Galactic Centre based on Population-II Cepheids and RR Lyrae stars
• On the nature of the fast moving star S2 in the Galactic Center
• Dark matter dynamics in Galactic center
• Constraining the number of compact remnants near Sgr A*

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• Variable stars in the VVV globular clusters. I. 2MASS-GC02 and Terzan10
• Evolving Nonthermal Electrons in Simulations of Black Hole Accretion
• New Search for Monochromatic Neutrinos from Dark Matter Decay
• The High-Density Ionized Gas in the Central Parsec of the Galaxy
• Orbits Around Black Holes in Triaxial Nuclei
• Abundant Methanol Masers but no New Evidence for Star Formation in GCM0.253+0.016
• An Ultra-deep Chandra Catalog of X-ray Point Sources in the Galactic Center Star Cluster
• Population synthesis of ultracompact X-ray binaries in the Galactic Bulge
• Kerr black hole parameters in terms of red/blue shifts of photons emitted by geodesic particles
• Signature of an Intermediate-Mass Black Hole in the Central Molecular Zone of Our Galaxy
• Search for a Variation of the Fine Structure around the Supermassive Black Hole in Our Galactic Center
• GRAVITY: a four-telescope beam combiner instrument for the VLTI
• The Galactic Centre in the Far Infrared
• Multiwavelength Follow-up of the Hyperluminous Intermediate-mass Black Hole Candidate 3XMM J215022.4-055108
• Astrometric performance of the Gemini multi-conjugate adaptive optics system in crowded fields
• Hard X-ray Morphological and Spectral Studies of The Galactic Center Molecular Cloud Sgr B2: Constraining Past Sgr A* Flaring Activity
• Kinematic Detection of the Galactic Nuclear Disc
• Clustering of Local Group distances: publication bias or correlated measurements? IV. The Galactic Center
• Constraining the range of Yukawa gravity interaction from S2 star orbits III: improvement expectations for graviton mass bounds
• The Globular Cluster/Central Black Hole Connection in Galaxies
• VERITAS Observations of the Galactic Center Region at Multi-TeV Gamma-Ray Energies
• Charged Thin-shell Gravastars in Noncommutative Geometry
• Relativity and the evolution of the Galactic center S-star orbits
• S-stars in the Galactic center and hypervelocity stars in the Galactic halo: two faces of the tidal breakup of stellar binaries by the central massive black hole?
• Detecting Gamma-Ray Anisotropies from Decaying Dark Matter: Prospects for Fermi LAT
• ATCA Survey of Ammonia in the Galactic Center: The Temperatures of Dense Gas Clumps between SgrA* and SgrB2
• Multiwavelength VLBI observations of Sagittarius A*
• Constraining the Structure of Sagittarius A*'s Accretion Flow with Millimeter-VLBI Closure Phases
• The Astrophysics of Resonant Orbits in the Kerr Metric
• A Parametric model for the shapes of black-hole shadows in non-Kerr spacetimes
• Hydrodynamical simulations of a compact source scenario for the Galactic Center cloud G2
• Shadow of a rotating squashed Kaluza-Klein black hole
• The Effects of Accretion Flow Dynamics on the Black Hole Shadow of Sagittarius A${}^{\ast }$
• Stellar Disruption of Axion Miniclusters in the Milky Way
• Near-Infrared and X-ray Quasi-Periodic Oscillations in Numerical Models of Sgr A*
• The S-Star Cluster at the Center of the Milky Way: On the nature of diffuse NIR emission in the inner tenth of a parsec
• GC-IRS13E - A puzzling association of three early-type stars
• Supermassive dark-matter Q-balls in galactic centers?
• Holographic Imaging of Crowded Fields: High Angular Resolution Imaging with Excellent Quality at Very Low Cost
• Constraining Extended Gravity Models by S2 star orbits around the Galactic Centre
• The Galactic Centre star S2 as a dynamical probe for intermediate-mass black holes
• Long-term classical and general relativistic effects on the radial velocities of the stars orbiting Sgr A*
• Millimetre-wave Emission from an Intermediate-Mass Black Hole Candidate in the Milky Way
• The instrumental polarization of the Nasmyth focus polarimetric differential imager NAOS/CONICA (NACO) at the VLT - Implications for time-resolved polarimetric measurements of Sgr A*
• A fussy revisitation of antiprotons as a tool for Dark Matter searches
• 2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments
• Improved distances and ages for stars common to TGAS and RAVE
• Black hole solutions in massive gravity
• Towards relativistic orbit fitting of Galactic center stars and pulsars
• Mixed sneutrino dark matter in light of the 2011 XENON and LHC results
• Masses of Nearby Supermassive Black Holes with Very-Long Baseline Interferometry
• More than just a wrinkle: A wave-like pattern in radial velocity vs. angular momentum from Gaia Data
• Polarized light from Sgr A* in the near-infrared $K_s$-band
• Physical laboratory at the center of the Galaxy
• The Circular Polarization of Sagittarius A* at Submillimeter Wavelengths
• Observing the Galaxy's massive black hole with gravitational wave bursts
• Kinematic Structure of the Galactic Center S-cluster
• Kinetic screening in nonlinear stellar oscillations and gravitational collapse
• The dark mass signature in the orbit of S2
• Identifying Stellar Streams in Gaia DR2 with Data Mining Techniques
• Can multistate dark matter annihilation explain the high-energy cosmic ray lepton anomalies?
• Dipole anisotropy in cosmic electrons and positrons: inspection on local sources
• On the spatial distribution and the origin of hypervelocity stars
• Radio Synchrotron Emission from a Bow Shock around the Gas Cloud G2 Heading toward the Galactic Center
• Quasi-Periodic Flares from Star-Accretion Disc Collisions
• Quiescent and active galactic nuclei as factories of merging compact objects in the era of gravitational-wave astronomy
• Test of Einstein equivalence principle near the Galactic center supermassive black hole
• The Structure of the Outer Galactic Disc as revealed by IPHAS early A Stars
• A self-consistent phase-space distribution function for the anisotropic Dark Matter halo of the Milky Way
• Analysing surveys of our Galaxy -- II. Determining the potential
• Outer Rotation Curve of the Galaxy with VERA I: Trigonometric parallax of IRAS 05168+3634
• Dynamical constraints on the origin of the young B-stars in the Galactic center
• ISM Processing in the Inner 20 pc in Galactic center
• Testing alternative theories of gravity by fitting the hot-spot data of Sgr A*
• Investigating the retention of intermediate-mass black holes in star clusters using N-body simulations
• Shadows of Colliding Black Holes
• The X-Shaped Milky Way Bulge in OGLE-III Photometry and in N-Body Models
• Predicting the hypervelocity star population in Gaia
• A model for a dark matter core at the galactic center
• Observing gravitational lensing effects by Sgr A* with GRAVITY
• Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum
• Possible Origin of the G2 Cloud from the Tidal Disruption of a Known Giant Star by Sgr A*
• The combined effect of AGN and supernovae feedback in launching massive molecular outflows in high-redshift galaxies
• A Fossil Bulge Globular Cluster revealed by VLT Multi-Conjugate Adaptive Optics
• Comparing timelike geodesics around a Kerr black hole and a boson star
• A rapid evolving region in the Galactic Center: Why S-stars thermalize and more massive stars are missing
• Spectroscopic Detection of a Cusp of Late-type Stars around the Central Black Hole in the Milky Way
• Gravitational-Wave Signatures from Compact Object Binaries in the Galactic Center
• Universal scaling of the 3:2 twin-peak quasi-periodic oscillation frequencies with black hole mass and spin revisited
• Black Hole Starvation and Bulge Evolution in a Milky Way-like Galaxy
• The extreme luminosity states of Sagittarius A*
• Observing Extended Sources with the \Herschel SPIRE Fourier Transform Spectrometer
• Self-consistent spectra from radiative GRMHD simulations of accretion onto Sgr A*
• Estimating the parameters of the Sgr A* black hole
• Bremsstrahlung gamma rays from light Dark Matter
• Probing the innermost accretion flow geometry of Sgr A* with Event Horizon Telescope
• Taming astrophysical bias in direct dark matter searches
• Black hole shadows in fourth-order conformal Weyl gravity
• The Tidal Tails of 47 Tucanae
• Astrometry with the Keck-Interferometer: the ASTRA project and its science
• The fall of the Northern Unicorn: Tangential motions in the Galactic Anti-centre with SDSS and Gaia
• Observational evidence for high neutronization in supernova remnants: implications for Type Ia supernova progenitors
• Spectral and Imaging properties of Sgr A* from High-Resolution 3D GRMHD Simulations with Radiative Cooling
• Joint constraints on the Galactic dark matter halo and Galactic Centre from hypervelocity stars
• Accurate characterization of the stellar and orbital parameters of the exoplanetary system WASP-33 b from orbital dynamics
• Radial abundance gradients in the outer Galactic disk as traced by main-sequence OB stars
• The Star Formation History of the Milky Way's Nuclear Star Cluster
• Constraining the dark cusp in the Galactic Center by long-period binaries
• A New Perspective of the Radio Bright Zone at The Galactic Center: Feedback from Nuclear Activities
• Scattering from charged black holes and supergravity
• On the VLBI measurement of the Solar System acceleration
• Observation of S4716 -- a Star with a 4 yr Orbit around Sgr A*
• Unbound Debris Streams and Remnants Resulting From the Tidal Disruptions of Stars by Supermassive Black Holes
• What stellar orbit is needed to measure the spin of the Galactic center black hole from astrometric data?
• Simulations of M87 and Sgr A* Imaging with the Millimetron Space Observatory on near-Earth orbits
• Stellar Energy Relaxation around A Massive Black Hole
• Localizing Sagittarius A* and M87 on Microarcsecond Scales with Millimeter VLBI
• Geodesic motion in the space-time of a non-compact boson star
• A Galactic Center Origin for HE 0437-5439, the Hypervelocity Star near the Large Magellanic Cloud
• ALMA Observations of the Galactic Center: SiO Outflows and High Mass Star Formation near Sgr A*
• Constraining Non-local Gravity by S2 star orbits
• Astrometric Microlensing by Local Dark Matter Subhalos
• TeV Gamma-ray Observations of The Galactic Center Ridge By VERITAS
• The Post-Periapse Evolution of Galactic Center Source G1: The second case of a resolved tidal interaction with a supermassive black hole
• Gravitational wave of intermediate-mass black holes in Population III star clusters
• Scalar Resonant Relaxation of Stars Around a Massive Black Hole
• Star Formation in the vicinity of Nuclear Black Holes: Young Stellar Objects close to Sgr A*
• The origin of hotspots around Sgr A*: Orbital or pattern motion?
• VLBA observations of a rare multiple quasar imaging event caused by refraction in the interstellar medium
• Relativistic dynamics of stars near a supermassive black hole
• The Stellar Distribution Function and Local Vertical Potential from Gaia DR2
• A Three Parsec-Scale Jet-Driven Outflow from Sgr A*
• Millimeter Radio Continuum Emissions as the Activity of Super Massive Black Holes in Nearby Early-Type Galaxies and Low-Luminosity Active Galactic Nuclei
• The VVV Survey RR Lyrae Population in the Galactic Centre Region
• The Post-Pericenter Evolution of the Galactic Center Source G2
• ALMA Observations of Circumnuclear Disks in Early Type Galaxies: 12CO(2-1) and Continuum Properties
• Geodesic motion around hairy black holes
• Flaring up of the Compact Cloud G2 during the Close Encounter with Sgr A*
• Prospects for constraining the spin of the massive black hole at the Galactic center via the relativistic motion of a surrounding star
• Relativistic redshift effects and the Galactic-center stars
• A nova origin of the gas cloud at the Galactic Center ?
• Confusing binaries: the role of stellar binaries in biasing disk properties in the Galactic Center
• The Interplay between the Dark Matter Axion and Primordial Black Holes
• Gamma-ray and X-ray emission from the Galactic Centre: hints on the nuclear star cluster formation history
• Supernovae in the Central Parsec: A Mechanism for Producing Spatially Anisotropic Hypervelocity Stars
• Limb-darkening measurements for a cool red giant in microlensing event OGLE 2004-BLG-482
• Impact of cosmological satellites on the vertical heating of the Milky Way disc
• Silhouettes of invisible black holes
• Testing modified Newtonian dynamics in the Milky Way
• Do Nuclear Star Clusters and Black Holes Follow the Same Host-Galaxy Correlations?
• Strong Gravitational Lensing by Sgr A*
• Cosmic Magnetism in Centimeter and Meter Wavelength Radio Astronomy
• Young, Massive Star Candidates Detected throughout the Nuclear Star Cluster of the Milky Way
• Globular clusters and supermassive black holes in galaxies: further analysis and a larger sample
• The central dynamics of M3, M13, and M92: Stringent limits on the masses of intermediate-mass black holes
• ALMA View of the Circum-nuclear Disk of the Galactic Center; Tidally-disrupted Molecular Clouds falling to the Galactic Center
• Multimessenger tests of the weak equivalence principle from GW170817 and its electromagnetic counterparts
• Detection of faint stars near SgrA* with GRAVITY
• Mass of the Southern Black Hole in NGC 6240 from Laser Guide Star Adaptive Optics
• Using the motion of S2 to constrain scalar clouds around SgrA*
• Complementarity of direct and indirect Dark Matter detection experiments
• X-ray Detectability of Accreting Isolated Black Holes in Our Galaxy
• Unveiling the nature of SgrA* with the geodesic motion of S-stars
• Bright X-ray flares from Sgr A*
• Improving Orbit Estimates for Incomplete Orbits with a New Approach to Priors -- with Applications from Black Holes to Planets
• First hard X-ray detection of the non-thermal emission around the Arches cluster: morphology and spectral studies with NuSTAR
• Limits on the Weak Equivalence Principle and Photon Mass with FRB 121102 Sub-pulses
• Non-interacting black hole binaries with Gaia and LAMOST
• Sgr A*: The Optimal Testbed of Strong-Field Gravity
• The Second Galactic Center Black Hole?; A Possible Detection of Ionized Gas Orbiting around an IMBH embedded in the Galactic Center IRS13E complex
• Blocking low-eccentricity EMRIs: A statistical direct-summation N-body study of the Schwarzschild barrier
• H3+ Spectroscopy and the Ionization Rate of Molecular Hydrogen in the Central Few Parsecs of the Galaxy
• Deep Images of the Galactic Center with GRAVITY
• Enhanced accretion rates of stars on Super-massive Black Holes by star-disk interactions in galactic nuclei
• On Socially Distant Neighbors: Using Binaries to Constrain the Density of Objects in the Galactic Center
• An Inverse Compton Scattering Origin of X-ray Flares from Sgr A*
• Approaching hell's kitchen: Molecular daredevil clouds in the vicinity of Sgr A*
• On the origin of the B-stars in the Galactic center
• Where intermediate-mass black holes could hide in the Galactic Centre: A full parameter study with the S2 orbit
• On the Jacobi capture origin of binaries with applications to the Earth-Moon system and black holes in galactic nuclei
• Strong deflection lensing by charged black holes in scalar-tensor gravity
• The Keplerian three-body encounter II. Comparisons with isolated encounters and impact on gravitational wave merger timescales
• HALO7D II: The Halo Velocity Ellipsoid and Velocity Anisotropy with Distant Main Sequence Stars
• Fe Ka line emission from the Arches cluster region - evidence for ongoing particle bombardment?
• A Near-infrared RR Lyrae census along the southern Galactic plane: the Milky Way's stellar fossil brought to light
• Supermassive black holes coalescence mediated by massive perturbers: implications for gravitational waves emission and nuclear cluster formation
• A New Estimate of the Best Value for the Solar Galactocentric Distance
• The Galactic Center: An Improved Astrometric Reference Frame for Stellar Orbits around the Supermassive Black Hole
• Estimating the Parameters of Extended Gravity Theories with the Schwarzschild Precession of S2 Star
• On particle acceleration and transport in plasmas in the Galaxy: theory and observations
• Extreme-mass-ratio-bursts from extragalactic sources
• Spin and mass of the nearest supermassive black hole
• The proper motion of Palomar 5
• Testing the Accretion Flow with Plasma Wave Heating Mechanism for Sagittarius a* by the 1.3MM Vlbi Measurements
• The Galactic Center: Improved Relative Astrometry for Velocities, Accelerations, and Orbits near the Supermassive Black Hole
• Timescale of twin-peak quasi-periodic oscillations and mass of accreting neutron stars
• The Properties and Fate of the Galactic Center G2 Cloud
• Internal rotation of Milky Way dwarf spheroidal satellites with $Gaia$ Early Data Release 3
• XMM-Newton observations of the Galactic Centre Region - I: The distribution of low-luminosity X-ray sources
• Modelling the black hole silhouette in Sgr A* with ion tori
• Interstellar Gas and a Dark Disk
• Accelerated orbital decay of supermassive black hole binaries in merging nuclear star clusters
• Can supernova kicks trigger EMRIs in the Galactic Centre?
• Sagittarius A* as an Origin of the Galactic PeV Cosmic Rays?
• Expectations for extreme-mass-ratio bursts from the Galactic Centre
• Does the Milky Way Obey Spiral Galaxy Scaling Relations?
• The Keplerian three-body encounter I. Insights on the origin of the S-stars and the G-objects in the Galactic center
• Gamma rays from the Galactic Centre region: a review
• Coordinated NIR/mm observations of flare emission from Sagittarius A*
• Study of charged gravastar model in $f(\mathcal{Q})$ gravity
• Analysis of Determinations of the Distance between the Sun and the Galactic Center
• Testing black holes in non-linear electrodynamics from the observed quasi-periodic oscillations
• Coronal radiation of a cusp of spun-up stars and the X-ray luminosity of Sgr A*
• Vector Resonant Relaxation of Stars around a Massive Black Hole
• Event horizon image within black hole shadow
• The Intrinsic Shape of Sagittarius A* at 3.5-mm Wavelength
• Near horizon thermodynamics of hairy black holes from gravitational decoupling
• The black hole at the Galactic Center: observations and models
• The Galactic Center as a laboratory for theories of gravity and dark matter
• Constraints on Yukawa gravity parameters from observations of bright stars
• On the Existence of Pulsars in the Vicinity of the Massive Black Hole in the Galactic Center
• First Light for GRAVITY Wide: Large Separation Fringe Tracking for the Very Large Telescope Interferometer
• Probing the spinning of the massive black hole in the Galactic Center via pulsar timing: A Full Relativistic Treatment
• Mass-scaling as a method to constrain outflows and particle acceleration from low-luminosity accreting black holes
• Monitoring dusty sources in the vicinity of Sgr A*
• Spatial dispersion of light rays propagating through a plasma in Kerr spacetime
• Constraining the Galactic potential via action-based distribution functions for mono-abundance stellar populations
• Weighing of the Dark Matter at the Center of the Galaxy
• Massive Star Formation of the Sgr A East HII Regions Near the Galactic Center
• Compact-Object Mergers in the Galactic Center: Evolution in Triaxial Clusters
• Quantifying Intrinsic Variability of Sagittarius A* using Closure Phase Measurements of the Event Horizon Telescope
• Sky localization of complete inspiral-merger-ringdown signals for nonspinning massive black hole binaries
• An artificial neural network to discover Hypervelocity stars: Candidates in Gaia DR1/TGAS
• Effects of galaxy--satellite interactions on bar formation
• Evidence for a jet and outflow from Sgr A*: a continuum and spectral line study
• On gravastar formation: What can be the evidence of a black hole?
• $\text{galkin}$: a new compilation of the Milky Way rotation curve data
• Galactic-center S-Stars as a prospective test of the Einstein Equivalence Principle
• Gravitational lensing of stars orbiting the Massive Black Hole in the Galactic Center
• The spatial and velocity distributions of hypervelocity stars
• Rapid Intrinsic Variability of Sgr A* at Radio Wavelengths
• APOGEE chemical tagging constraint on the maximum star cluster mass in the $\alpha$-enhanced Galactic disk
• Searching for intermediate-mass black holes in globular clusters with gravitational microlensing
• The inner cavity of the circumnuclear disc
• A HR-like diagram for galaxies: the M_BH versus M_G sigma^2 relation
• Testing the No-Hair Theorem with Sgr A*
• Pulsar timing in extreme mass ratio binaries: a general relativistic approach
• Chemical evolution of disc galaxies from cosmological simulations
• New Method for Exploring Super-Eddington AGNs by Near-infrared Observations
• Sizing Up the Milky Way: A Bayesian Mixture Model Meta-Analysis of Photometric Scale Length Measurements
• A time-dependent jet model for the emission from Sagittarius A*
• LMC self lensing for OGLE-II microlensing observations
• Clocks around Sgr A*
• The Milky Way's circular velocity curve and its constraint on the Galactic mass with RR Lyrae stars
• Non-universality of halo profiles and implications for dark matter experiments
• The Nature of Hypervelocity Stars and the Time Between Their Formation and Ejection
• Ionized Gas in the Galactic Center: New Observations and Interpretation
• Looking for extra dimensions in the observed quasi-periodic oscillations of black holes
• GRMHD simulations of visibility amplitude variability for Event Horizon Telescope images of Sgr A*
• Nature of the Galactic centre NIR-excess sources. I. What can we learn from the continuum observations of the DSO/G2 source?
• Bayesian techniques for comparing time-dependent GRMHD simulations to variable Event Horizon Telescope observations
• An Adaptive Optics Survey of Stellar Variability at the Galactic Center
• Variability in GRMHD simulations of Sgr A${}^{\ast }$: Implications for EHT closure phase observations
• Wisps in the Galactic center: NIR triggered observations of the radio source Sgr A* at 43 GHz
• HST Observations of the Stellar Distribution Near Sgr A*
• Hu1-2: a metal-poor bipolar planetary nebula with fast collimated outflows
• Probing spacetime and accretion model for the Galactic Center: Comparison of Kerr and dilaton black hole shadows
• Extended Tidal Tails of IC 4756 detected by {\it Gaia} EDR3
• Black hole Spin Measurement Based on Time-domain VLBI Observations of Infalling Gas Cloud
• Supernova Kicks and Dynamics of Compact Remnants in the Galactic Centre
• Probing the formation history of the nuclear star cluster at the Galactic Centre with millisecond pulsars
• A formal method for identifying distinct states of variability in time-varying sources: SgrA* as an example
• Exploring the Correlations between Globular Cluster Populations and Supermassive Black Holes in Giant Galaxies
• Dark Disk Substructure and Superfluid Dark Matter
• Can Star-Disk Collisions Explain the Missing Red Giants Problem in the Galactic Center?
• Exact expressions for the pericenter precession caused by some Dark Matter distributions and constraints on them from orbital motions in the Solar System, in the double pulsar and in the Galactic center
• The origin of S-stars and a young stellar disk: distribution of debris stars of a sinking star cluster
• Constraining ultralight bosonic dark matter with Keck observations of S2's orbit and kinematics
• On the Rotation Speed of the Milky Way Determined from HI Emission
• A magnetized torus for modeling Sgr A* millimeter images and spectra
• The Influence of Gas Dynamics on Measuring the Properties of the Black Hole in the Center of the Milky Way with Stellar Orbits and Pulsars
• Targeting supermassive black hole binaries and gravitational wave sources for the pulsar timing array
• Exciting dark matter in the galactic center
• Disk Assembly and the M_BH-sigma Relation of Supermassive Black Holes
• Black hole science with the Laser Interferometer Space Antenna
• ALMA View of the Galactic Center Mini-spiral: Ionized Gas Flows around Sagittarius A*
• On the Newtonian and Spin-induced Perturbations felt by the Stars Orbiting around the Massive Black Hole in the Galactic Center
• Testing Einstein's weak equivalence principle with a 0.4-nanosecond giant pulse of the Crab pulsar
• Gravastar model in Krori-Barua metric under $f(Q)$ gravity
• Hadronic origin of multi-TeV gamma rays and neutrinos from low-luminosity active galactic nuclei: implications of past activities of the Galactic center
• Precise Dynamical Masses of Epsilon Indi Ba and Bb: Evidence of Slowed Cooling at the L/T Transition
• A Deep Chandra View of A Candidate Parsec-Scale Jet from the Galactic Center Super-massive Black Hole
• Accumulated Tidal Heating of Stars Over Multiple Pericenter Passages Near SgrA*
• Performance of astrometric detection of a hotspot orbiting on the innermost stable circular orbit of the galactic centre black hole
• The most metal-poor Galactic globular cluster: the first spectroscopic observations of ESO280-SC06
• Dark matter concentrations in galactic nuclei according to polytropic models
• Secular theory of the orbital evolution of the young stellar disc in the Galactic Centre
• A Stability Timescale for Non-Hierarchical Three-Body Systems
• Star Formation and Dynamics in the Galactic Centre
• AGN Feeding and Feedback in M84: From Kiloparsec Scales to the Bondi Radius
• Radio Synchrotron Emission from the Bow Shock of G2
• Fast Spinning Pulsars as Probes of Massive Black Holes' Gravity
• Tidal breakup of triple stars in the Galactic Centre
• Searching for Intermediate Mass Black Holes in galaxies with Low Luminosity AGN: A multiple-method approach
• The 492 GHz emission of Sgr A* constrained by ALMA
• Properties of bow-shock sources at the Galactic center
• Galactic Center Mini-spiral by ALMA - Possible Origin of the Central Cluster
• Modelling Accretion Disk and Stellar Wind Interactions: the Case of Sgr A*
• Globally visible singularity in an astrophysical setup
• Constraints on the Galactic Centre environment from Gaia hypervelocity stars
• Revealing Dark Matter Dress of Primordial Black Holes by Cosmological Lensing
• Submillimeter Quasi-Periodic Oscillations in Magnetically Choked Accretion Flows Models of Sgr A*
• Mass Distribution in the Central Few Parsecs of Our Galaxy
• Near-infrared polarimetry as a tool for testing properties of accreting super-massive black holes
• To see invisible: image of the event horizon within the black hole shadow
• Accretion of a Vlasov gas on to a black hole from a sphere of finite radius and the role of angular momentum
• Constraining a companion of the galactic center black hole, Sgr A*
• Star formation at the Galactic Centre: coevolution of multiple young stellar discs
• KMT-2021-BLG-0171Lb and KMT-2021-BLG-1689Lb: Two Microlensing Planets in the KMTNet High-cadence Fields with Followup Observations
• Strong Gravitational Lensing in a Charged Squashed Kaluza- Klein Gödel Black hole
• Spectroscopic twin to the hypervelocity sdO star US 708 and three fast sdB stars from the Hyper-MUCHFUSS project
• Systematic uncertainties from halo asphericity in dark matter searches
• Eccentric disc instability in stellar discs formed from inspiraling gas clouds in the Galactic Centre
• Spherical Cows in Dark Matter Indirect Detection
• 3D adaptive mesh refinement simulations of the gas cloud G2 born within the disks of young stars in the Galactic Center
• Antiproton Limits on Decaying Gravitino Dark Matter
• Far Infrared Variability of Sagittarius A*: 25.5 Hours of Monitoring with $Herschel$
• Density spikes near black holes in self-interacting dark matter halos and indirect detection constraints
• A Leptonic Model of Steady High-Energy Gamma-Ray Emission from Sgr A${}^{\ast }$
• Post-Newtonian direct and mixed orbital effects due to the oblateness of the central body
• Flares and variability from Sagittarius A*: five nights of simultaneous multi-wavelength observations
• Making sense of the local Galactic escape speed estimates in direct dark matter searches
• On the post-Keplerian corrections to the orbital periods of a two-body system and their application to the Galactic Center
• M - sigma relation between SMBHs and the velocity dispersion of globular cluster systems
• Event horizon silhouette: implications to supermassive black holes M87* and SgrA*
• XMM-Newton observations of the Galactic Centre Region - II: The soft thermal emission
• Effect of an isotropic outflow from the Galactic centre on the bow-shock evolution along the orbit
• Testing the Galactic Centre potential with S-stars
• Ks- and Lp-band polarimetry on stellar and bow-shock sources in the Galactic center
• Stellar Populations in the Central 0.5 pc of Our Galaxy III: The Dynamical Sub-structures
• Microlensing Predictions: Impact of Galactic Disc Dynamical Models
• Analytical time-like geodesics
• Spin Evolution of Supermassive Black Holes and Galactic Nuclei
• Distinguishing an ejected blob from alternative flare models at the Galactic centre with GRAVITY
• The coupling of a young stellar disc with the molecular torus in the Galactic centre
• Strong gravitational lensing by a Konoplya-Zhidenko rotating non-Kerr compact object
• Beyond the Local Volume. I. Surface Densities of Ultracool Dwarfs in Deep HST/WFC3 Parallel Fields
• Examining molecular clouds in the Galactic Centre region using X-ray reflection spectra simulations
• Physical Contact between the +20 km/s Cloud and the Galactic Circumnuclear Disk
• Gravitational radiation driven capture in unequal mass black hole encounters
• A new bow-shock source with bipolar morphology in the vicinity of Sgr A*
• The difficulty of measuring the local dark matter density
• Perturbations induced by a molecular cloud on the young stellar disc in the Galactic Centre
• Theoretical interpretation of Pass 8 Fermi-LAT $e^{+}+e^{-}$ data
• Two-body relaxation driven evolution of the young stellar disc in the Galactic Centre
• Mass and spin of Kerr black holes in terms of observational quantities: The dragging effect on the redshift
• The Proper Motion of Pyxis: the first use of Adaptive Optics in tandem with HST on a faint halo object
• Testing Einstein's Equivalence Principle with Short Gamma-ray Bursts
• Prospects for Constraining the Yukawa Gravity with Pulsars around Sagittarius A*
• Fluorine Abundances in the Galactic Disk
• An Earth-Mass Planet and a Brown Dwarf in Orbit Around a White Dwarf
• Can the Slow-Rotation Approximation be used in Electromagnetic Observations of Black Holes?
• Narrowing the allowed mass range of ultralight bosons with the S2 star
• Probing spacetime around Sagittarius A* using modeled VLBI closure phases
• Constraining the accretion flow density profile near Sgr A* using the $L^{\prime }$-band emission of the S2 star
• Using gas clouds to probe the accretion flow around SgrA*: G2's delayed pericenter passage
• Parallax of the L4.5 dwarf 2M1821$+$14 from high-precision astrometry with OSIRIS at GTC
• First results from a large-scale proper motion study of the Galactic Centre
• Single-field model of gravitational-scalar instability. I. Evolution of perturbations
• Influence of bulk mass distribution on orbital precession of S2 star in Yukawa gravity
• Consistency of the Infrared Variability of Sgr A* over 22 years
• Rotating Ionized Gas Ring around the Galactic Center IRS13E3
• Do quasar broad-line velocity widths add any information to virial black hole mass estimates?
• Empirical properties of Very Massive Stars
• Dynamics around supermassive black holes: Extreme mass-ratio inspirals as gravitational-wave sources
• The properties of hypervelocity stars and S-stars originating from an eccentric disc around a supermassive black hole
• Evolution of spherical perturbations in the cosmological environment of degenerate scalarly charged fermions with the Higgs scalar interaction
• Forming circumnuclear disks and rings in galactic nuclei: a competition between supermassive black hole and nuclear star cluster
• Determination of Galactic Rotation Parameters and the Solar Galactocentric Distance Ro from 73 Masers
• Constraints on the Galactic Centre environment from \textit{Gaia} hypervelocity stars III: Insights on a possible companion to Sgr A*
• Close stellar encounters at the Galactic Centre I: The effect on the observed stellar populations
• Sgr A* and its Environment: Low Mass Star Formation, the Origin of X-ray Gas and Collimated Outflow
• Evidence for dark matter modulation in CoGeNT?
• Near-infrared Polarimetry of flares from Sgr A* with Subaru/CIAO
• Eccentricity of HLX-1
• Relaxation near supermassive black holes driven by nuclear spiral arms: anisotropic hypervelocity stars, S-stars and tidal disruption events
• The apparent tail of the Galactic center object G2/DSO
• Red Runaways: Hypervelocity Stars, Hills Ejecta and Other Outliers in the F-M Star Regime
• The Orbit and Origin of the Ultra-faint Dwarf Galaxy Segue 1
• Gravitomagnetism and Pulsar Beam Precession near a Kerr Black Hole
• Chasing a consistent picture for dark matter direct searches
• Addressing Cosmological Tensions by Non-Local Gravity
• High-speed molecular cloudlets around the Galactic Center supermassive black hole
• Testing the Einstein's equivalence principle with polarized gamma-ray bursts
• Degeneracy between mass and peculiar acceleration for the double white dwarfs in the LISA band
• Estimating the parameters of Hybrid Palatini gravity model with the Schwarzschild precession of S2, S38 and S55 stars: case of bulk mass distribution
• Testing horizon topology with electromagnetic observations
• Discovery of X-ray flaring activity in the Arches cluster
• The astrosphere of the Asymptotic Giant Branch star CIT 6
• Identification of Galactic Bulge Survey X-ray Sources with Tycho-2 Stars
• Multi-epoch searches for relativistic binary pulsars and fast transients in the Galactic Centre
• A numerical study of stellar discs in galactic nuclei
• The orbital evolution of UFDs and GCs in an evolving Galactic potential
• CMB Isotropy Anomalies and the Local Kinetic Sunyaev-Zel'dovich Effect
• Black hole tidal charge constrained by strong gravitational lensing
• Constraints on the Galactic Centre environment from Gaia hypervelocity stars II: The evolved population
• High Velocity Compact Clouds in the Sagittarius C Region
• Fermi LAT observations of Sagittarius A*: Imaging Analysis
• ALMA Detection of Extreme Blue-Shifted Ionized Gas Within 0.2 pc of Sgr A* from -480 to -300 km/s
• Impact of Accretion Flow Dynamics on Gas-dynamical Black Hole Mass Estimates
• A general relativistic mass-to-distance ratio for a set of megamaser AGN black holes
• PPN motion of the S-stars around Sgr A*
• The ESPRI project: astrometric exoplanet search with PRIMA I. Instrument description and performance of first light observations
• Understanding the Geometry of Astrophysical Magnetic Fields
• The propagation delay in the timing of a pulsar orbiting a supermassive black hole
• Can life survive Gamma-Ray Bursts in the high-redshift universe?
• Constraining the Milky Way Dark Matter Density Profile with Gamma-Rays with Fermi-LAT
• Testing space-time geometries and theories of gravity at the Galactic Center with pulsar's time delay
• Test of the Weak Equivalence Principle using LIGO observations of GW150914 and Fermi observations of GBM transient 150914
• Single-Field Model of Gravitational-Scalar Instability. II. Black Hole Formation
• First observed interaction of the circumstellar envelope of an S-star with the environment of Sgr A*
• The S2 star as a probe of the accretion disk of Sgr A*
• Estimation of the SolarGalactocentric Distance and Rotation Velocity from Near-Solar-Circle Objects
• Gamma-ray triangles: a possible signature of asymmetric dark matter in indirect searches
• The Scales of Gravitational Lensing
• Origin of Thermal and Non-Thermal Hard X-ray Emission from the Galactic Center
• On the Oosterhoff dichotomy in the Galactic bulge: II. kinematical distribution
• The Implications of Local Fluctuations in the Galactic Midplane for Dynamical Analysis in the Gaia Era
• The evolution of circumstellar discs in the Galactic Centre: an application to the G-clouds
• Complex orbital dynamics of a double neutron star system revolving around a massive black hole
• Synchrotron Blob Model of Infrared and X-ray Flares from Sagittarius A${}^{\ast }$
• Random Forest Classification of Stars in the Galactic Centre
• Making SPIFFI SPIFFIER: Upgrade of the SPIFFI instrument for use in ERIS and performance analysis from re-commissioning
• Neutrino lighthouse powered by Sagittarius A* disk dynamo
• Galactic Centre star formation: the case of the missing gas disc
• Constraining the Black Hole Mass Spectrum with LISA Observations II: Direct comparison of detailed models
• GRBs and fundamental physics
• The luminosity function of quasars by the Principle of Maximum Entropy
• Dynamics of a Superdense Cluster of Black Holes and the Formation of the Galactic SMBH
• Motion of Spinning Particles around Electrically Charged Black Hole in Eddington-inspired Born-Infeld Gravity
• The fate of supernova remnants near quiescent supermassive black holes
• Relativistic propagation and frame dragging time delay in the timing of a pulsar orbiting the supermassive black hole SgrA*
• Optimal Celestial Bodies for Dark Matter Detection
• Tidally induced velocity gradients in the Milky Way dwarf spheroidal satellites
• Nomen non est omen: Why it is too soon to identify ultra-compact objects as black holes
• Using Isabelle to verify special relativity, with application to hypercomputation theory
• Intermediate-Mass Black Holes in binary-rich star clusters
• Observation of the apoapsis of S62 in 2019 with NIRC2 and SINFONI
• Generation of gravitational waves and tidal disruptions in clumpy galaxies
• Properties of Galactic Dark Matter: Constraints from Astronomical Observations
• Stability of Condensed Fuzzy Dark Matter Halos
• Tidal Disruption of Inclined or Eccentric Binaries by Massive Black Holes
• Orbit-superposition models of discrete, incomplete stellar kinematics: application to the Galactic centre
• $H_0$ Tension on the Light of Supermassive Black Hole Shadows Data
• Detection of a dense group of hyper-compact radio sources in the central parsec of the Galaxy
• Strömgren uvby photometry of the peculiar globular cluster NGC 2419
• Testing the Black Hole No-hair Theorem with Galactic Center Stellar Orbits
• GSH 006-15+7: A local Galactic supershell featuring transition from HI emission to absorption
• Astrometric Detection of Intermediate-Mass Black Holes At the Galactic Centre
• A look at the generalized Darboux transformations for the quasinormal spectra in Schwarzschild black hole perturbation theory: just how general should it be?
• Deviation of Stellar Orbits from Test Particle Trajectories Around Sgr A* Due to Tides and Winds
• Motion of spinning particles around a polymer black hole in loop quantum gravity
• 8 in 10 Stars in the Milky Way Bulge Experience Stellar Encounters Within 1000 AU in a Gigayear
• Weak gravitational lensing by Einstein-non-linear-Maxwell-Yukawa black hole
• Parameter study for hot spot trajectories around Sgr$A\ast$
• Beyond the Local Volume. II. Population Scaleheights and Ages of Ultracool Dwarfs in Deep HST/WFC3 Parallel Fields
• Deciphering signatures of Bardeen black holes from the observed quasi-periodic oscillations
• Evidence for C and Mg variations in the GD-1 stellar stream
• Intermediate mass black holes' effect on compact object binaries
• Constraining Solar position and velocity with a Nearby Hypervelocity Star
• Monitoring the Galactic Centre with Australia Telescope Compact Array
• The influence of dense gas rings on the dynamics of a stellar disk in the Galactic center
• Constraining the Milky Way's Ultraviolet to Infrared SED with Gaussian Process Regression
• Axial Anomaly in Galaxies and the Dark Universe
• Absolute Proper Motion of IRAS 00259+5625 with VERA : Indication of Superbubble Expansion Motion
• A Clustering Analysis of the Morphology of the 130 GeV Gamma-Ray Feature
• Multi-wavelength torus-jet model for Sgr~A*
• X-ray spectra of Sgr A East and diffuse X-ray background near the Galactic center
• Classification Study of WISE Infrared Sources: Identification of Candidate Asymptotic Giant Branch Stars
• IRTF/TEXES Observations of the HII Regions H1 and H2 in the Galactic Centre
• Adaptive optics assisted near-infrared polarization measurements of sources in the Galactic Center
• Evolution of Supernova Remnants near the Galactic Center
• Millimeter-wave Spectral Line Surveys toward the Galactic Circumnuclear Disk and Sgr A*
• No Microwave Flare of Sagittarius A* around the G2 Periastron Passing
• $\text{Siriusly}$, a newly identified intermediate-age Milky Way stellar cluster: A spectroscopic study of $\text{Gaia}$ 1
• LISA Constraints on an Intermediate-Mass Black Hole in the Galactic Centre
• Unrecognized Astrometric Confusion in the Galactic Centre
• The Mid-Infrared Colours of Galactic Bulge, Disk and Magellanic Planetary Nebulae
• Formation of supermassive nuclei of Black holes in the early Universe by the mechanism of scalar-gravitational instability. I. Local picture
• "Kepler Harmonies" and conformal symmetries
• Detecting gravitational-wave bursts from black hole binaries in the Galactic Center with LISA
• The Origin of HVS17, an Unbound Main Sequence B Star at 50 kpc
• Future merger of the Milky Way with the Andromeda galaxy and the fate of their supermassive black holes
• Not Gone with the Wind: Planet Occurrence is Independent of Stellar Galactocentric Velocity
• Seeing relativity -- I. Ray tracing in a Schwarzschild metric to explore the maximal analytic extension of the metric and making a proper rendering of the stars
• GCIRS 7, a pulsating M1 supergiant at the Galactic centre. Physical properties and age
• Observational Signatures of Mass-Loading in Jets Launched by Rotating Black Holes
• EMRIs and the relativistic loss-cone: The curious case of the fortunate coincidence
• Radiation drag in the field of a non-spherical source
• Three-dimensional Radiative Properties of Hot Accretion Flows onto the Galactic Centre Black Hole
• Relativistic effects in orbital motion of the S-stars at the Galactic Center
• Photometric Classification of Stars Around the Milky Way's Central Black Hole: I. Central Parsec
• Gravitational lensing by a stable rotating regular black hole
• Divergences in gravitational-wave emission and absorption from extreme mass ratio binaries
• Gravitational - Scalar Instability of a Two-Component Degenerate System of Scalar Charged Fermions with Asymmetric Higgs Interaction
• Cartan Invariants and Event Horizon Detection, Extended Version
• ALMA 300 pc resolution imaging of a z=6.79 quasar: no evidence for supermassive black hole influence on the [C II] kinematics
• Stellar winds near massive black holes: The case of the S-stars
• On the rotationally driven pevatron in the centre of the Milky Way
• Observational redshift from general spherically symmetric black holes
• Primordial monopolium as dark matter
• Searching for correlations in GAIA DR2 unbound star trajectories
• Confronting recent AMS-02 positron fraction and Fermi-LAT Extragalactic Gamma-Ray Background measurements with gravitino dark matter
• Occultation of the Quiescent Emission from Sgr A* by IR Flares
• Black Hole Discs and Spheres in Galactic Nuclei -- Exploring the Landscape of Vector Resonant Relaxation Equilibria
• Strong Gravitational Lensing with Gauss-Bonnet correction
• Colour-magnitude diagram in simulations of galaxy formation
• - Gravitational Waves - A Review on the Conceptual Foundations of Gravitational Radiation
• Probing the shape of the Milky Way dark matter halo with hypervelocity stars: a new method
• The Density Profile and Kinematics of the Milky Way with RR Lyrae Stars
• Active Galaxies and the Study of Black Hole Demographics
• How far actually is the Galactic Center IRS 13E3 from Sagittarius A${}^{\ast }$?
• Tidal breakup of quadruple stars in the Galactic Centre
• Tidal effects in the motion of gas clouds around boson stars
• Lobe Overflow as the Likely Cause of Pericenter Outburst in an SMBH Orbiter
• Sliding into DM: Determining the local dark matter density and speed distribution using only the local circular speed of the Galaxy
• On the possibility of a warped disc origin of the inclined stellar discs at the Galactic Centre
• The nearby eclipsing stellar system delta Velorum - IV. Differential astrometry with VLT/NACO at the 100 microarcsecond level
• A GALAH View of the Chemical Homogeneity and Ages of Stellar Strings Identified in Gaia
• An application of Galactic parallax: the distance to the tidal stream GD-1
• Near-infrared counterparts of Chandra X-ray sources toward the Galactic Center
• CO-0.30-0.07: A Peculiar Molecular Clump with an Extremely Broad Velocity Width
• The dynamics of Galactic centre pulsars: constraining pulsar distances and intrinsic spin-down
• Detection of pulsar beams deflected by the black hole in Sgr A*: effects of black hole spin
• Revisit of open clusters UPK 39, UPK 41 and PHOC 39 : a new binary open cluster found
• Recent Results and Perspectives for Precision Astrometry and Photometry with Adaptive Optics
• Black holes and Galactic density cusps -- I. Radial orbit cusps and bulges
• Evolution of eccentric stellar disks around supermassive black holes: the complex disk disruption dynamics and the milliparsec stars
• Motion of test particle in rotating boson star
• The secular evolution of discrete quasi-Keplerian systems. II. Application to a multi-mass axisymmetric disc around a supermassive black hole
• SgrA${}^{\ast }$ spin and mass estimates through the detection of an extremely large mass-ratio inspiral
• Cosmological evolution of a statistical system of degenerate scalar charged fermions with an asymmetric scalar doublet. II. One-component system of doubly charged fermions
• The impact of gravitational lensing in the reconstruction of stellar orbits around Sgr A*
• Signatures of an Encounter Between the G2 Cloud and a Jet from Sgr A*
• Measuring the Direction and Angular Velocity of a Black Hole Accretion Disk via Lagged Interferometric Covariance
• A hierarchical Bayesian model to infer PL(Z) relations using Gaia parallaxes
• Estimating black hole masses in obscured AGN using X-rays
• The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. II. Kinematic structure
• Evolution of plane perturbations in the cosmological environment of the Higgs scalar field and an ideal scalar charged fluid
• The Effects of Tilt on the Time Variability of Millimeter and Infrared Emission from Sagittarius A*
• Discovery of the Pigtail Molecular Cloud in the Galactic Center
• A Milliarcsecond-accurate Position for Sagittarius A*
• Predictions of the pseudo-complex theory of Gravity for EHT observations: I. Observational tests
• A common origin for the circumnuclear disc and the nearby molecular clouds in the Galactic Centre
• Exploring the presence of a fifth force at the Galactic Center
• Orbits in bootstrapped Newtonian gravity
• Probing the Spacetime Around Supermassive Black Holes with Ejected Plasma Blobs
• Detecting Stars at the Galactic Centre via Synchrotron Emission
• Disentangling Confused Stars at the Galactic Center with Long Baseline Infrared Interferometry
• Analysis of Galactic Rotation from Masers based on a Nonlinear Oort Model
• Constraining a disformal Schwarzschild black hole in DHOST theories with the orbit of the S2 star
• The connecting molecular ridge in the Galactic center
• The Solar System's passage through the Radcliffe wave during the middle Miocene
• Searching for clues of past binary supermassive black hole mergers in nuclear star clusters
• Radio timing in a millisecond pulsar-extreme/intermediate mass ratio binary system
• Perturbative solutions of the $f(R)$-theory of gravity in a central gravitational field and some applications
• The G2+G2t complex as a fast and massive outflow?
• Probing the spin of the central black hole in the galactic centre with secondary images
• Formation of Gyrs old black holes in the center of galaxies within the Lema\^ıtre--Tolman model
• Revealing the Physical Conditions around Sgr A* using Bayesian Inference -- I. Observations and Radiative Transfer
• Intrinsically Polarized Stars and Implication for Star Formation in the Central Parsec of Our Galaxy
• Parameter Distributions of Binary Black Hole Mergers Near Supermassive Black Holes as Seen by Advanced Gravitational Wave Detectors
• Gravitational Burst Radiation from Pulsars in the Galactic centre and stellar clusters
• Sculpting the Stellar Cusp in the Galactic Center
• AEther as an Inevitable Consequence of Quantum Gravity
• Predictions of the pseudo-complex theory of Gravity for EHT observations- II. Theory and predictions
• Prospects for probing strong gravity with a pulsar-black hole system
• The global structure of the Milky Way's stellar halo based on the orbits of local metal-poor stars
• Planetary nebulae in the inner Milky Way II: the Bulge-Disk transition
• Massive stars in the young cluster VVV CL074
• Schwarzschild black hole and redshift rapidity: A new approach towards measuring cosmic distances
• Probing Accretion Turbulence in the Galactic Center with EHT Polarimetry
• Black Holes and Galactic Density Cusps Spherically Symmetric Anisotropic Cusps
• Perturbative approach to $f(R)$-gravitation in FLRW cosmology
• Duality and four-dimensional black holes: gravitational waves, algebraically special solutions, pole skipping, and the spectral duality relation in holographic thermal CFTs
• AGN mass estimates in large spectroscopic surveys: the effect of host galaxy light
• Binary mergers in the centers of galaxies: synergy between stellar flybys and tidal fields
• Formation of supermassive nuclei of Black holes in the early\\[8pt] Universe by the mechanism of scalar-gravitational instability. II. The evolution of localized spherical perturbations
• Probing the formation of planetesimals in the Galactic Centre using Sgr A* flares
• Dark Fluxes from Accreting Black Holes and Direct Detections
• Search for decaying heavy dark matter in an effective interaction framework: a comparison of $\gamma$-ray and radio observations
• Candidate Young Stellar Objects in the S-cluster: The Kinematic Analysis of a Sub-population of the Low-mass G-objects close to Sgr A*
• Reshaping our understanding on structure formation with the quantum nature of the dark matter
• New Evidence for a Flux-independent Spectral Index of Sgr A* in the Near-infrared
• Relevant scales for the $C$-metric with positive cosmological constant
• Red giant - jet collisions in galactic nuclei I: 3D hydrodynamical model of a few stellar orbits
• Identification of a high-velocity compact nebular filament 2.2 arcsec south of the Galactic Centre
• The Stellar Population and Orbit of the Galactic Globular Cluster Palomar 3
• Formation of supermassive nuclei of Black holes in the early Universe by the mechanism of scalar-gravitational instability. III. Large scale picture
• An analytic solution for weak-field Schwarzschild geodesics
• Adaptive Optics Observations of the Galactic Center Young Stars
• Study of the Science Capabilities of PRIMA in the Galactic Center
• Catalog of High Velocity Dispersion Compact Clouds in the Central Molecular Zone of Our Galaxy
• The contribution of young core-collapse supernova remnants to the X-ray emission near quiescent supermassive black holes
• Revisiting Stellar Orbits and the Sgr A${}^{\ast }$ Quadrupole Moment
• 3D AMR hydrosimulations of a compact source scenario for the Galactic Centre cloud G2
• Generalized Uncertainty Principle and Quantum Gravity Phenomenology
• Radial Velocity Measurements of an Orbiting Star Around Sgr A*
• Optical Distortion in the NACO Imager
• A stellar fly-by close to the Galactic centre: Can we detect stars on highly-relativistic orbits?
• Polarized gamma rays from dark matter annihilations
• Simulating the pericentre passage of the Galactic centre star S2
• The kinetic Sunyaev-Zel'dovich effect from the diffuse gas in the Local Group
• Dynamical Measurement of Supermassive Black Hole Masses: QPE Timing Method
• Possibility of Measuring spin precession of the nearest supermassive black hole by S stars
• Stellar Populations in the Galactic Center
• Signatures of Einstein-Maxwell dilaton-axion gravity from the observed quasi-periodic oscillations in black holes
• Probing Stellar Dynamics in Galactic Nuclei
• Double progenitor origin of the S-star cluster
• Galactic Cosmic Rays - Theory and Interpretation
• Constraining the rotating Simpson-Visser spacetime from the observed quasi-periodic oscillations in black holes
• Lensing Stability and Scattering Phenomena in Anisotropic Black Hole Spacetimes in Plasma
• Asymptotically AdS black hole with a conformally-coupled scalar field in the first-order formalism of gravity
• Origin of the low-temperature plasma in the Galactic center X-ray emission
• Self-consistent Solutions of Evolving Nuclear Star Clusters with Two-Dimensional Monte-Carlo Dynamical Simulations
• Strong Lensing Effect and Quasinormal Modes of Oscillations of Black Holes in $\mathbf{f}(\mathbf{R},\mathbf{T})$ Gravity Theory
• A Case Study of Interstellar Material Delivery: α Centauri
• High Latitude, Translucent Molecular Clouds as Probes of Local Cosmic Rays
• The Lense-Thirring effect at work in M87${}^{\ast }$
• Cylindrical black hole solutions in $f(\mathcal{R})$ and $f(\mathcal{R},\mathcal{A},A^{\mu \nu }{A}_{\mu \nu })$ modified gravity
• Can Massive Gravity Explain the Mass Discrepancy - Acceleration Relation of Disk Galaxies?
• Exotic orbits due to spin-spin coupling around Kerr black holes
• Tidally-disrupted Molecular Clouds falling to the Galactic Center
• Greenland Telescope Project --- Direct Confirmation of Black Hole with Sub-millimeter VLBI
• The Galactic Center in Color: Measuring Extinction with High-Proper-Motion Stars
• The multi-zone chemical evolution of the Galactic bulge: predicting abundances for different radial zones
• Gravitational-Scalar Instability of a Cosmological Model Based on a Two-Component System of Degenerate Scalarly Charged Fermions with Asymmetric Higgs Interaction. I. Equations for Perturbations
• High-velocity hot CO emission close to Sgr A*: Herschel/HIFI submillimeter spectral survey toward Sgr A*
• Rotation Measure synthesis study and polarized properties of PSR J1745-2900 at 7 mm
• Tests of General Relativity: A Review
• Selected Chapters on Active Galactic Nuclei as Relativistic Systems
• Testing the weak equivalence principle with the binary neutron star merger GW170817: the gravitational contribution of the host galaxy
• Relativistic encounters in dense stellar systems
• Thermomagnetic Ettingshausen-Nernst effect in tachocline and axion mechanism of solar luminosity variations
• Testing General Relativity in the Strong-Field Regime with Observations of Black Holes in the Electromagnetic Spectrum
• Evolution of spherical perturbations in the cosmological environment of the Higgs scalar field and an ideal scalar charged fluid
• Gravitational Waves from Primordial Black Hole Dark Matter Spikes
• Resonant interactions from dynamical perturbers on generic orbits around an extreme mass ratio inspiral
• Greenland Telescope (GLT) Project: "A Direct Confirmation of Black Hole with Submillimeter VLBI"
• Mini-spiral as source of material for Sgr A* in bright state
• Focal Plane Tip-Tilt Sensing for Improved Single-Mode Fiber Coupling using a 3D-printed Microlens-Ring
• Post-Newtonian orbital effects induced by the mass quadrupole and spin octupole moments of an axisymmetric body
• On Equation of State of Dark Matter around Massive Black Holes
• Distance to the Low-velocity Cloud in the Direction of the High-velocity Compact Cloud CO--0.40--0.22
• Individual chaotic behaviour of the S-stars in the Galactic centre
• Accelerations of stars in central 2-7 arcsec from Sgr A*
• Feedback from intermediate mass black holes on dwarf galaxy morphology at z=2
• Development and Application of Numerical Techniques for General-Relativistic Magnetohydrodynamics Simulations of Black Hole Accretion
• Constraints on a fifth force from the stellar orbits around the central supermassive black hole of the Milky Way
• Synchrotron emission from a nearby zone of SgrA${}^{\ast }$
• Coronal heating problem solution by means of axion origin photons
• The Nuclear Cluster of the Milky Way: Total Mass and Luminosity
• Hydrodynamical simulations of a compact source scenario for G2
• Axion mechanism of Sun luminosity: light shining through the solar radiation zone
• Detecting gravitational waves from the galactic center with Pulsar Timing
• Stability of planetary systems within the S-star cluster: the Solar system analogues
• Space-based Gravitational Wave Observatories
• Determination of the Solar Galactocentric distance from masers kinemics
• The Galactic Center Black Hole Laboratory
• G2 and Sgr A*: A Cosmic Fizzle At The Galactic Center
• Sources and Radiations of the Fermi Bubbles
• Anisotropic matter and nonlinear electromagnetics black holes
• Co-evolution of Nuclear Star Clusters and Massive Black Holes: Extreme Mass-Ratio Inspirals
• Black Hole Quasi-Periodic Oscillations in the Presence of Gauss-Bonnet Trace Anomaly
• Observational constraints on the formation and evolution of the Milky Way nuclear star cluster with Keck and Gemini
• The effects of the spin and quadrupole moment of SgrA* on the orbits of S stars
• Are we close to put the anomalous perihelion precessions from Verlinde's emergent gravity to the test?
• Pulsar Timing Constraints on Cumulative and Individual Mass of Stars in the Galactic Center
• Nonstatic Reissner-Nordström metric in the perturbative $f(R)$ theory: Embedding in the background of the FLRW cosmology, uniqueness of solutions, the TOV equation
• SgrA* spin and mass estimates through the detection of multiple extremely large mass-ratio inspirals
• A Recent Supermassive Black Hole Binary in the Galactic Center Unveiled by the Hypervelocity Stars
• Juergen Ehlers - and the Fate of the Black-Hole Spacetimes
• Detecting Black Hole Occultations by Stars with Space Interferometric Telescopes
• Post-Keplerian perturbations of the hyperbolic motion in the field of a rotating massive object. Analysis in terms of osculating and nonosculating (contact) elements
• First on-sky results of ERIS at VLT
• Locating the VHE source in the Galactic Centre with milli-arcsecond accuracy
• Constraining Scalar-Tensor gravity models by S2 star orbits around the Galactic Center
• Study of Galactic Structure Using UVIT/AstroSat Star Counts
• Searching for Dark Matter Annihilation to Monoenergetic Neutrinos with Liquid Scintillation Detectors
• A Near-Infrared Extinction and Reddening Map Towards the Galactic Bulge Using UKIRT
• The gas streamer G1-2-3 in the Galactic Center
• The Core-shift of Sagittarius A* as a Discriminant between Disk and Jet Emission Models with millimeter-VLBI
• Inference from modelling the chemodynamical evolution of the Milky Way disc
• The dynamics of S-stars and G-sources orbiting a supermassive compact object made of fermionic dark matter
• Cosmological evolution of gas and supermassive black holes in idealized isolated halos
• Probing Galactic Diffuse TeV Gamma-Ray Emission with the HAWC Observatory
• Equilibrium Core and Vortex Solutions of Bose Einstein Condensate Dark Matter around a Black Hole
• Cosmological models based on an asymmetric scalar doublet with kinetic coupling of components. I. General properties of the cosmological model
• On the prospects of imaging Sagittarius A* from space
• Photometric Constraints on Intermediate-mass Black Holes in the Galactic Centre
• SgrA* emission at 7mm: variability and periodicity
• Die Reissner-Nordström-Metrik in der Pseudokomplexen Allgemeinen Relativitätstheorie
• The Local Dark Matter Density
• Radio Emission from Sgr A*: Pulsar Transits Through the Accretion Disc
• Closing the gap: Follow-up observations of peculiar dusty objects close to Sgr A* using ERIS
• Fake plunges are very eccentric real EMRIs in disguise ... they dominate the rates and are blissfully ignorant of angular momentum barriers
• Gravitational physics in the context of Indian astronomy: A vision document
• Parabolic-like Trend in SiO Ratios throughout the Central Molecular Zone: Possible Signature of a Past Nuclear Activity in the Galactic Center
• Post-Newtonian limit of generalized scalar-teleparallel theories of gravity
• Challenging theories of gravitation: dark matter, compact objects and gravitational waves
• The Milky Way's nuclear star cluster and massive black hole
• Higgs, supersymmetry and dark matter after Run I of the LHC
• Revisiting the gravitomagnetic clock effect
• The Steady State of Intermediate-Mass Black Holes Near a Supermassive Black Hole
• Unveiling the Massive Stars in the Galactic Center
• The Fate of Binary Stars Hosting Planets upon Interaction with Sgr A* Black hole
• Interaction of Stars Hosting Planets with Sgr A* Black hole
• Tidal phenomena in the Galactic Center: The curious case of X7
• The late Miocene ${}^{10}$Be anomaly and the possibility of a supernova
• Thermodynamic and observational implications of black holes in toroidal geometry
• Enhanced Doppler Beaming for Dust-Enshrouded Objects and Pulsars in the Galactic Center
• Thermomagnetic Ettingshausen-Nernst effect in tachocline, magnetic reconnection phenomenon in lower layers, axion mechanism of solar luminosity variations, coronal heating problem solution and mechanism of ADM variations around BH
• A solution to the paradox of youth in the Galactic centre
• Light curves and spectra for stellar collisions between main-sequence stars in galactic nuclei
• A nonmetric theory of gravitation that is nonsingular at the Schwarzschild radius
• Visible shapes of black holes M87* and SgrA*
• Generic effective sources for first-order in mass-ratio gravitational self-force calculations in Schwarzschild spacetime
• PPN--spin degeneracies in mock S62-like stellar-orbit inference
• Rotational Curves of the Milky Way Galaxy and Andromeda Galaxy in Light of Vacuum Polarization around Eicheon
• Diffuse gamma-ray emission from the Galactic center and implications of its past activities
• Stellar Dynamics and Black Holes
• Implication of spin constraints by the Event Horizon Telescope on stellar orbits in the Galactic Center
• Investigating the effects of gravitational lensing by Hu-Sawicki $\mathbf{f}(\mathbf{R})$ gravity black holes
• Boosting (In)direct Detection of Dark Matter
• From the Circumnuclear Disk in the Galactic Center to thick, obscuring tori of AGNs -- Modelling the molecular emission of a parsec-scale torus as found in NGC1068
• What does lie at the Milky Way centre? Insights from the S2 star orbit precession
• Constraining the shape of Milky Way satellites with distance gradients
• Composition of the galactic center star cluster: Population analysis from adaptive optics narrow band spectral energy distributions
• Black holes
• Gravitational Microlensing Rates in Milky Way Globular Clusters
• Shadow cast by a rotating black hole with anisotropic matter
• A Catalogue of Interstellar Material Delivery From Nearby Debris Disks
• Constructing a gravitational wave analysis pipeline for extremely large mass ratio inspirals
• "Spoon-feeding" an AGN
• Accretion disk parameters in HLX-1
• Cross-checking SMBH mass estimates in NGC 6958 -- I: Stellar dynamics from adaptive optics-assisted MUSE observations
• Discriminating between different scenarios for the formation and evolution of massive black holes with LISA
• Dynamical interplay of disc thickness and the interstellar gas: implication for the longevity of spiral density waves
• Kozai-driven mass loss of the circumbinary disk in D9 in orbit around the supermassive black hole Sgr A*