Using the motion of S2 to constrain scalar clouds around SgrA*

Abstract

The motion of S2, one of the stars closest to the Galactic Centre, has been measured accurately and used to study the compact object at the centre of the Milky Way. It is commonly accepted that this object is a supermassive black hole but the nature of its environment is open to discussion. Here, we investigate the possibility that dark matter in the form of an ultralight scalar field ``cloud'' clusters around Sgr~A*. We use the available data for S2 to perform a Markov Chain Monte Carlo analysis and find the best-fit estimates for a scalar cloud structure. Our results show no substantial evidence for such structures. When the cloud size is of the order of the size of the orbit of S2, we are able to constrain its mass to be smaller than $0.1\%$ of the central mass, setting a strong bound on the presence of new fields in the galactic centre.

arXiv commentPublished on MNRAS. References added

References in corpus (47)

• emcee: The MCMC Hammer
• String Axiverse
• First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way
• Monitoring stellar orbits around the Massive Black Hole in the Galactic Center
• Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits
• The Galactic Center Massive Black Hole and Nuclear Star Cluster
• Closest Star Seen Orbiting the Supermassive Black Hole at the Centre of the Milky Way
• Detection of the gravitational redshift in the orbit of the star S2 near the Galactic centre massive black hole
• A geometric distance measurement to the Galactic Center black hole with 0.3% uncertainty
• Dark matter annihilation at the galactic center
• The First Measurement of Spectral Lines in a Short-Period Star Bound to the Galaxy's Central Black Hole: A Paradox of Youth
• Analytical Models For Galactic Nuclei
• First Light for GRAVITY: Phase Referencing Optical Interferometry for the Very Large Telescope Interferometer
• Detection of the Schwarzschild precession in the orbit of the star S2 near the Galactic centre massive black hole
• Instability of the massive Klein-Gordon field on the Kerr spacetime
• An Update on Monitoring Stellar Orbits in the Galactic Center
• The orbit of the star S2 around SgrA* from VLT and Keck data
• Detection of orbital motions near the last stable circular orbit of the massive black hole SgrA*
• The mass distribution in the Galactic Centre from interferometric astrometry of multiple stellar orbits
• Black holes as particle detectors: evolution of superradiant instabilities
• Testing the general relativistic ''no-hair'' theorems using the galactic center black hole SgrA*
• Superradiant instabilities in astrophysical systems
• Dark matter distributions around massive black holes: A general relativistic analysis
• Dark Matter Spikes and Annihilation Radiation from the Galactic Center
• Time-Dependent Models for Dark Matter at the Galactic Center
• Evidence for Low Black Hole Spin and Physically Motivated Accretion Models from Millimeter VLBI Observations of Sagittarius A*
• Superradiant instabilities of rotating black branes and strings
• Floating and sinking: the imprint of massive scalars around rotating black holes
• Evolution of the Dark Matter Distribution at the Galactic Center
• The Proper Motion of Sagittarius A*: III. The Case for a Supermassive Black Hole
• Twelve years of spectroscopic monitoring in the Galactic Center: the closest look at S-stars near the black hole
• Dynamical constraints on a dark matter spike at the Galactic Centre from stellar orbits
• Looking for ultralight dark matter near supermassive black holes
• Orbital fingerprints of ultralight scalar fields around black holes
• An upper limit on the spin of SgrA${}^{\ast }$ based on stellar orbits in its vicinity
• General relativistic effects on the orbit of the S2 star with GRAVITY
• Scalar field effects on the orbit of S2 star
• Pinpointing the near-infrared location of Sgr A* by correcting optical distortion in the NACO imager
• Measuring spin of a supermassive black hole at the Galactic centre -- Implications for a unique spin
• Kerr black holes with synchronised Proca hair: lensing, shadows and EHT constraints
• Axiverse and Black Hole
• 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
• The dark mass signature in the orbit of S2
• The Galactic Center as a laboratory for theories of gravity and dark matter
• Constraining ultralight bosonic dark matter with Keck observations of S2's orbit and kinematics
• Ultralight scalars and resonances in black-hole physics
• Testing the Black Hole No-hair Theorem with Galactic Center Stellar Orbits

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• Getting More Out of Black Hole Superradiance: a Statistically Rigorous Approach to Ultralight Boson Constraints from Black Hole Spin Measurements
• Probing vector gravitational atoms with eccentric intermediate mass-ratio inspirals
• Constraints on metric-affine gravity black holes from the stellar motion at the Galactic Center
• Constraining a disformal Schwarzschild black hole in DHOST theories with the orbit of the S2 star
• Kerr-scalaron metric and astronomical consequences near the Galactic Center black hole
• Effects of Superradiance in Active Galactic Nuclei
• Neural Network Analysis of S-Star Dynamics: Implications for Modified Gravity
• Probing a Lorentz-violating parameter from orbital precession of the S2 star around the galactic centre supermassive black hole
• Scalar fields around black hole binaries in LIGO-Virgo-KAGRA
• Self-Gravity in Superradiance Clouds: Implications for Binary Dynamics and Observational Prospects
• Neural Network Analysis of S2-Star Dynamics: Extended mass
• Constraining Axion Dark Matter with Galactic-Centre Resonant Dynamics
• S2-star dynamics probing the Galaxy core cluster
• Boson Cloud Atlas: Direct mass measurements of superradiance clouds near black holes
• Sagittarius A* near-infrared flares polarization as a probe of space-time I: Non-rotating exotic compact objects
• Fermionic Dark Matter spikes: origin and growth of Black Hole seeds
• Detecting Lorentz-violation induced by a tensor field with S-star's motion around Sgr A*