The Effect of the Outer Lindblad Resonance of the Galactic Bar on the Local Stellar Velocity Distribution

Abstract

Hydro-dynamical modeling of the inner Galaxy suggest that the radius of the outer Lindblad resonance (OLR) of the Galactic bar lies in the vicinity of the Sun. How does this resonance affect the distribution function in the outer parts of a barred disk, and can we identify any effect of the resonance in the velocity distribution f(v) actually observed in the solar neighborhood? To answer these questions, detailed simulations of f(v) in the outer parts of an exponential stellar disks with nearly flat rotation curves and a rotating central bar have been performed. For a model resembling the old stellar disk, the OLR causes a distinct feature in f(v) over a significant fraction of the outer disk. For positions <2kpc outside the OLR radius and at bar angles of \~10-70 degrees, f(v) inhibits a bi-modality between the low-velocity stars moving like the local standard of rest (LSR) and a secondary mode of stars predominantly moving outward and rotating more slowly than the LSR. Such a bi-modality is indeed present in f(v) inferred from the Hipparcos data for late-type stars in the solar neighborhood. If one interpretes this observed bi-modality as induced by the OLR -- and there are hardly any viable alternatives -- then one is forced to deduce that the OLR radius is slightly smaller than Ro. Moreover, by a quantitative comparison of the observed with the simulated distributions one finds that the pattern speed of the bar is 1.85+/-0.15 times the local circular frequency, where the error is dominated by the uncertainty in bar angle and local circular speed. Also other, less prominent but still significant, features in the observed f(v) resemble properties of the simulated velocity distributions, in particular a ripple caused by orbits trapped in the outer 1:1 resonance.

14 pages, 10 figures (Fig.2 in full resolution available upon request), accepted for publication in AJ

References in corpus (7)

• The Proper Motion of SgrA*: I. First VLBA Results
• Velocity distribution of stars in the solar neighbourhood
• The properties of the Galactic bar implied by gas kinematics in the inner Milky Way
• Proper Motion of the Compact, Nonthermal Radio Source in the Galactic Center, Sagittarius a*
• The Pattern Speed of the Galactic Bar
• Simple Distribution Functions for Stellar Disks
• Approximating Stellar Orbits: Improving on Epicycle Theory

Cited by in corpus (358)

• The Galaxy in Context: Structural, Kinematic and Integrated Properties
• galpy: A Python Library for Galactic Dynamics
• The New Galaxy: Signatures of its Formation
• Exploring the Milky Way stellar disk. A detailed elemental abundance study of 714 F and G dwarf stars in the Solar neighbourhood
• Co-formation of the Galactic disc and the stellar halo
• The Radial Velocity Experiment (RAVE): first data release
• Star Clusters Across Cosmic Time
• LAMOST Experiment for Galactic Understanding and Exploration (LEGUE) The survey science plan
• Chemodynamical evolution of the Milky Way disk I: The solar vicinity
• Local kinematics of K and M giants from Coravel/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters
• Phantom: A smoothed particle hydrodynamics and magnetohydrodynamics code for astrophysics
• Gaia Data Release 2: Mapping the Milky Way disc kinematics
• The Milky Way's circular velocity curve between 4 and 14 kpc from APOGEE data
• Streams, substructures and the early history of the Milky Way
• The RAdial Velocity Experiment (RAVE): Fourth data release
• A New Mechanism for Radial Migration in Galactic Disks: Spiral-Bar Resonance Overlap
• Dynamical modelling of the Galactic bulge and bar: the Milky Way's bar pattern speed, stellar, and dark matter mass distribution
• The Structure of the Milky Way's Bar Outside the Bulge
• Secular Evolution in Disk Galaxies
• Modified Newtonian Dynamics in the Milky Way
• Footprints of the Sagittarius dwarf galaxy in the $Gaia$ data set
• Kinematics and history of the solar neighbourhood revisited
• The stellar halo of the Galaxy
• Chemodynamical evolution of the Milky Way disk II: Variations with Galactic radius and height above the disk plane
• The Milky Way's Stellar Disk
• Vertical distribution of Galactic disk stars I - Kinematics and metallicity
• Gas Dynamics in the Milky Way: Second Pattern Speed and Large-Scale Morphology
• Order and chaos in the local disc stellar kinematics induced by the Galactic bar
• The stellar velocity distribution in the solar neighbourhood
• Pieces of the puzzle: Ancient substructure in the Galactic disk
• The Long-term Evolution of the Galactic Disk Traced by Dissolving Star Clusters
• Can bars be destroyed by a central mass concentration? I. Simulations
• Direct determination of the spiral pattern rotation speed of the Galaxy
• Extreme deconvolution: Inferring complete distribution functions from noisy, heterogeneous and incomplete observations
• Chemodynamics of barred galaxies in cosmological simulations: On the Milky Way's quiescent merger history and in-situ bulge
• When the Milky Way turned off the lights: APOGEE provides evidence of star formation quenching in our Galaxy
• The Effect of Spiral Structure on the Stellar Velocity Distribution in the Solar Neighborhood
• The formation of spiral arms and rings in barred galaxies
• Structure in phase space associated with spiral and bar density waves in an N-body galactic disk
• The GIRAFFE Inner Bulge Survey (GIBS). I. Survey Description and a kinematical map of the Milky Way bulge
• Is the Milky Way ringing? The hunt for high velocity streams
• Bending and Breathing Modes of the Galactic Disk
• Rings and spirals in barred galaxies. I Building blocks
• Constraints on the Galactic Bar from the Hercules stream as traced with RAVE across the Galaxy
• Disentangling the Hercules stream
• Warp, Waves, and Wrinkles in the Milky Way
• Radial and vertical flows induced by galactic spiral arms: likely contributors to our "wobbly Galaxy''
• Galactic rotation in Gaia DR1
• Origin and evolution of moving groups I. Characterization in the observational kinematic-age-metallicity space
• Unifying boxy bulge and planar long bar in the Milky Way
• Revisiting the Tale of Hercules: how stars orbiting the Lagrange points visit the Sun
• The Galactic Disc in Action Space as seen by Gaia DR2
• The Extragalactic Origin of the Arcturus Group
• Age velocity dispersion relations and heating histories in disc galaxies
• Radial Distribution of Stellar Motions in Gaia DR2
• Re-visiting the relations: Galactic thin disc age-velocity dispersion relation
• Understanding the spiral structure of the Milky Way using the local kinematic groups
• The Milky Way bar and bulge revealed by APOGEE DR16 and Gaia EDR3
• The Milky Way Halo in Action Space
• Low-Velocity Streams in the Solar Neighborhood Caused by the Galactic Bar
• Bar quenching in gas-rich galaxies
• Transient spiral structure and the disc velocity substructure in Gaia DR2
• Resonance sweeping by a decelerating Galactic bar
• Rings and spirals in barred galaxies. II. Ring and spiral morphology
• The effects of bar-spiral coupling on stellar kinematics in the Galaxy
• Estimation of the Tilt of the Stellar Velocity Ellipsoid from RAVE and Implications for Mass Models
• The signatures of the resonances of a large Galactic bar in local velocity space
• New Constraints on the Galactic Bar
• The effect of spiral arm passages on the evolution of stellar clusters
• The Hyades stream: evaporated cluster or intrusion from the inner disk?
• Riding the kinematic waves in the Milky Way disk with Gaia
• The GALAH survey and Gaia DR2: Linking ridges, arches and vertical waves in the kinematics of the Milky Way
• Stellar Kinematic Constraints on Galactic Structure Models Revisited: Bar and Spiral Arm Resonances
• Fluctuations in galactic bar parameters due to bar-spiral interaction
• Stellar diffusion in barred spiral galaxies
• Rings and spirals in barred galaxies. III. Further comparisons and links to observations
• On the age heterogeneity of the Pleiades, Hyades and Sirius moving groups
• A Galactic Bar to Beyond the Solar Circle and its Relevance for Microlensing
• Disassembling the Galaxy with angle-action coordinates
• Signatures of resonance and phase mixing in the Galactic disc
• The Oort Constants Measured from Proper Motions
• Models for the Gravitational Field of the Galactic Bar. An Application to Stellar Orbits in the Galactic Plane and Orbits of Some Globular Clusters
• Tree-ring structure of Galactic bar resonance
• Modelling the Galactic disc: perturbed distribution functions in the presence of spiral arms
• The disc origin of the Milky Way bulge: Dissecting the chemo-morphological relations using N-body simulations and APOGEE
• Chaos caused by resonance overlap in the solar neighborhood -- Spiral structure at the Bar's 2:1 outer Lindblad resonance
• A Recent Lindblad Resonance in the Solar Neighbourhood
• The Lifetimes of Spiral Patterns in Disc Galaxies
• Halo streams in the 7th SDSS data release
• The power spectrum of the Milky Way: Velocity fluctuations in the Galactic disk
• Identifying stellar streams in the 1st RAVE public data release
• Quantifying stellar radial migration in an N-body simulation: blurring, churning, and the outer regions of galaxy discs
• Tracing the Hercules stream with Gaia and LAMOST: new evidence for a fast bar in the Milky Way
• Effects of baryonic and dark matter substructure on the Pal 5 stream
• Gas dynamics in the Milky Way: a low pattern speed model
• 24.77 Pflops on a Gravitational Tree-Code to Simulate the Milky Way Galaxy with 18600 GPUs
• Signatures of minor mergers in the Milky Way disc I: The SEGUE stellar sample
• Large-Scale Model of the Milky Way: Stellar Kinematics and Microlensing Event Timescale Distribution in the Galactic Bulge
• The 4:1 Outer Lindblad Resonance of a long slow bar as a potential explanation for the Hercules stream
• Signatures of minor mergers in Milky Way-like disc kinematics: Ringing revisited
• Fine structure in the phase space distribution of nearby subdwarfs
• Kinematic groups beyond the Solar neighbourhood with RAVE
• The Brown Dwarf Kinematics Project (BDKP). IV. Radial Velocities of 85 Late-M and L dwarfs with MagE
• The effect of bars and transient spirals on the vertical heating in disk galaxies
• Modeling complete distributions with incomplete observations: The velocity ellipsoid from Hipparcos data
• Identifying resonances of the Galactic bar in Gaia DR2: I. Clues from action space
• Phylogeny of the Milky Way's inner disk and bulge populations: Implications for gas accretion, (the lack of) inside-out thick disk formation, and quenching
• Spectroscopic Survey of the Galaxy with Gaia II. The expected science yield from the Radial Velocity Spectrometer
• A direct measurement of the distance to the Galactic center using the kinematics of bar stars
• Distance determination for RAVE stars using stellar models
• Phase Space Structure in the Solar Neighbourhood
• Bimodality of [α/Fe]-[Fe/H] distributions is a natural outcome of dissipative collapse and disc growth in Milky Way-type galaxies
• The Apache Point Observatory Galactic Evolution Experiment: First Detection of High Velocity Milky Way Bar Stars
• Gas Dynamics in the Galaxy: Total Mass Distribution and the Bar Pattern Speed
• Revisiting long-standing puzzles of the Milky Way: the Sun and its vicinity as typical outer disk chemical evolution
• Gaia Data Release 3: Chemical cartography of the Milky Way
• Prospects for chemically tagging stars in the Galaxy
• Calculation of the Local Standard of Rest from 20,574 Local Stars in the New Hipparcos Reduction with Known Radial Velocities
• The velocity distribution of nearby stars from Hipparcos data II. The nature of the low-velocity moving groups
• Trapped orbits and solar-neighbourhood kinematics
• Chemical enrichment and star formation in the Milky Way disk III. Chemodynamical constraints
• The effect of stellar migration on Galactic chemical evolution: a heuristic approach
• The disc origin of the Milky Way bulge
• Is the Milky Way still breathing? RAVE-Gaia streaming motions
• Galactic planetary nebulae as probes of radial metallicity gradients and other abundance patterns
• The Bulge Radial Velocity Assay for RR Lyrae stars (BRAVA-RR) DR2: a Bimodal Bulge?
• The stellar mass distribution of the Milky Way's bar: an analytic model
• Spiral arm crossings inferred from ridges in Gaia stellar velocity distributions
• Assessing distances and consistency of kinematics in Gaia/TGAS
• 3D kinematics through the X-shaped Milky Way bulge
• The 3D structure of the Galactic bulge
• Stellar halo streams in the Solar neighbourhood
• Kinematics of planet-host stars and their relation with dynamical streams in the solar neighbourhood
• Kinematics with Gaia DR2: The Force of a Dwarf
• Escapees from the bar resonances. On the presence of low-eccentricity, metal-rich stars at the Solar vicinity
• Microlensing constraints on the Galactic Bulge Initial Mass Function
• The vertical effects of disc non-axisymmetries from perturbation theory: the case of the Galactic bar
• Modeling the Milky Way as a Dry Galaxy
• Discriminating among theories of spiral structure using Gaia DR2
• The origin and orbit of the old, metal-rich, open cluster NGC 6791: Insights from kinematics
• Origin of the high v_los feature in the Galactic bar
• More than just a wrinkle: A wave-like pattern in radial velocity vs. angular momentum from Gaia Data
• Modelling the inner disc of the Milky Way with manifolds. I - A first step
• Probing the Galaxy's bars via the Hercules stream
• Spiral and bar driven peculiar velocities in Milky Way sized galaxy simulations
• Stellar halo substructure generated by bar resonances
• 3D Asymmetrical motions of the Galactic outer disk with LAMOST K giant stars
• The Milky Way tomography with APOGEE: intrinsic density distribution and structure of mono-abundance populations
• Staying away from the bar: the local dynamical signature of slow and fast bars in the Milky Way
• Constraining churning and blurring in the Milky Way using large spectroscopic surveys -- an exploratory study
• Dynamics of Disks and Warps
• Chemo-kinematics of the Milky Way spiral arms and bar resonances: connection to ridges and moving groups in the Solar vicinity
• Made-to-measure galaxy models - III Modelling with Milky Way observations
• Radial Migration of the Sun in the Milky Way: a Statistical Study
• Trojans in the Solar Neighborhood
• Dynamically constraining the length of the Milky Way bar
• The COMBS Survey -- II. Distinguishing the Metal-Poor Bulge from the Halo Interlopers
• Galactic Rotation from Cepheids with Gaia DR2 and Effects of Non-Axisymmetry
• Mapping the Galactic disk with the LAMOST and Gaia Red clump sample. II. 3D asymmetrical kinematics of mono-age populations in the disk between 6$-14$ \,kpc
• Trimodal structure of Hercules stream explained by originating from bar resonances
• On the stellar velocity distribution in the solar neighborhood in the light of Gaia DR2
• A new model for gravitational potential perturbations in disks of spiral galaxies. An application to our Galaxy
• Relations among structural parameters in barred galaxies with a direct measurement of bar pattern speed
• Strong chemical tagging with APOGEE: 21 candidate star clusters that have dissolved across the Milky Way disc
• The analysis of realistic Stellar Gaia mock catalogues. I. Red Clump Stars as tracers of the central bar
• Galactic Bar Resonances Inferred from Kinematically Hot Stars in Gaia EDR3
• Dissecting the Phase Space Snail Shell
• The GALAH Survey: Stellar streams and how stellar velocity distributions vary with Galactic longitude, hemisphere and metallicity
• The Hercules stream as seen by APOGEE-2 South
• Chemo-kinematics of the Milky Way from the SDSS-III MARVELS Survey
• Identifying resonances of the Galactic bar in Gaia DR2: II. Clues from angle space
• Resonant Trapping in the Galactic Disc and Halo and its Relation with Moving Groups
• Effect of Different Stellar Galactic Environments on Planetary Discs I: The Solar Neighbourhood and the Birth Cloud of the Sun
• Rotating halo traced by the K giant stars from LAMOST and Gaia
• Classical Cepheids in the Galactic outer ring R1R2'
• Applying Schwarzschild's orbit superposition method to barred or non-barred disc galaxies
• Self-Similar Spherical Collapse with Tidal Torque
• A Schwarzschild model of the Galactic bar with initial density from N-body simulations
• Detecting the Sagittarius stream with LAMOST DR4 M giants \& Gaia DR2
• Radial halo substructure in harmony with the Galactic bar
• The Pristine Inner Galaxy Survey (PIGS) V: a chemo-dynamical investigation of the early assembly of the Milky Way with the most metal-poor stars in the bulge
• Stellar activity as a tracer of moving groups
• Oscillating dynamical friction on galactic bars by trapped dark matter
• The Galactic bar and the large scale velocity gradients in the Galactic disk
• Distribution functions for resonantly trapped orbits in the Galactic disc
• The dynamical origin of the Local arm and the Sun's trapped orbit
• Exploring the origin of moving groups and diagonal ridges by simulations of stellar orbits and birthplaces
• A Comprehensive Perturbative Formalism for Phase-Mixing in Perturbed Disks. I. Phase spirals in an Infinite, Isothermal Slab
• Vertical Phase Mixing across the Galactic Disk
• Tracing Hercules in Galactic azimuth with Gaia DR2
• Extending the Hyades
• Is it possible to reveal the lost siblings of the Sun?
• Stellar Stream Candidates in the Solar Neighborhood Found in the LAMOST DR3 and TGAS
• Tracing the Hercules stream around the Galaxy
• Kinematic structures of the Solar neighbourhood revealed by Gaia DR1/TGAS and RAVE
• Meridional tilt of the stellar velocity ellipsoid during bar buckling instability
• TOI-1231 b: A Temperate, Neptune-Sized Planet Transiting the Nearby M3 Dwarf NLTT 24399
• Vertical Oscillations of Fluid and Stellar Disks
• Constraining Spiral Structure Parameters through Galactic Pencil-beam and Large-scale Radial Velocity Surveys
• Timing the Milky Way bar formation and the accompanying radial migration episode
• Using Commensurabilities and Orbit Structure to Understand Barred Galaxy Evolution
• A Dynamical Model for Clustered Star Formation in the Galactic Disk
• Resonant Orbits and the High Velocity Peaks Towards the Bulge
• Exploring the role of the Sun's motion in terrestrial comet impacts
• Shape and orientation of stellar velocity ellipsoids in spiral galaxies
• A resonant feature near the Perseus arm revealed by red clump stars
• The Milky Way's bar structural properties from gravitational waves
• Moving groups across Galactocentric radius with Gaia DR3
• The velocity ellipsoid in the Galactic disc using Gaia DR1
• The stellar kinematics in the solar neighborhood from LAMOST data
• The peculiar in-plane velocities in the outer disc of the Milky Way
• The peculiar velocities in the Galactic outer disk--hints of the elliptical disk and the perturbation of the spiral structures
• Modelling resonances and orbital chaos in disk galaxies. Application to a Milky Way spiral model
• Young stars as tracers of a barred-spiral Milky Way
• Testing theories in barred spiral galaxies
• From ridges to manifolds: 3D characterization of the moving groups in the Milky Way disc
• A novel method to bracket the corotation radius in galaxy disks: vertex deviation maps
• Characterizing the Galactic warp with Gaia: I. The tilted ring model with a twist
• Combined dynamical effects of the bar and spiral arms in a Galaxy model. Application to the solar neighbourhood
• From ridges in the velocity distribution to wiggles in the rotation curve
• The power of co-ordinate transformations in dynamical interpretations of Galactic structure
• A new method for calculating the convergent point of a moving group
• Constraining the Milky Way assembly history with Galactic Archaeology. Ludwig Biermann Award Lecture 2015
• Kinematic Analysis of Solar-Neighborhood Stars Based on RAVE4 Data
• Metallicity dependence of the Hercules stream in Gaia/RAVE data -- explanation by non-closed orbits
• Chemodynamical signatures of bar resonances in the Galactic disk: current data and future prospects
• The imprints of the Galactic bar on the thick disk with RAVE
• Observational Constraints of Radial Migration in the Galactic Disc Driven by the Slowing Bar
• Kinematics of symmetric Galactic longitudes to probe the spiral arms of the Milky Way with Gaia
• Effects of the Central Mass Concentration on Bar Formation in Disk Galaxies
• SiO Maser Survey off the Galactic Plane: A Signature of Streaming Motion
• Mapping the Galactic disk with the LAMOST and Gaia Red clump sample: III: A new velocity substructure and time stamps of the Galactic disk asymmetry in the disk between 12$-$15 \,kpc
• The Milky Way Bar Pattern Speed using Hercules and Gaia DR3
• A Halo Substructure in Gaia Data Release 1
• Angle-action variables for orbits trapped at a Lindblad resonance
• A Galactic Ring of Minimum Stellar Density Near the Solar Orbit Radius
• The structure of accreted stellar streams
• The Arcturus Moving Group: Its Place in the Galaxy
• Signatures of star streams in the phase space distribution of nearby halo stars
• Analysis of Peculiarities of the Stellar Velocity Field in the Solar Neighborhood
• N-body simulations in reconstruction of the kinematics of young stars in the Galaxy
• A new resonance-like feature in the outer disc of the Milky Way
• Revealing the spiral arms through radial migration and the shape of the Metallicity Distribution Function
• Milky Way Gas Dynamics
• On the Origin of High-Altitude Open Clusters in the Milky Way
• Probing the Halo From the Solar Vicinity to the Outer Galaxy: Connecting Stars in Local Velocity Structures to Large-Scale Clouds
• Disentangling the Arcturus stream
• Substructures, Resonances and debris streams
• The local spiral arm in the LAMOST-Gaia common stars?
• Two-component outer ring and the Galactic spiral structure
• Correlations between age, kinematics, and chemistry as seen by the RAVE survey
• Effects of chaos on the detectability of stellar streams
• Dynamical friction and feedback on galactic bars in the general fast-slow regime
• Orbital and escape dynamics in barred galaxies - I. The 2D system
• The HR 1614 moving group is not a dissolving cluster
• On the Oosterhoff dichotomy in the Galactic bulge: II. kinematical distribution
• Action-based Dynamical Modeling for the Milky Way Disk: The Influence of Spiral Arms
• Global enhancement and structure formation of the magnetic field in spiral galaxies
• Analysis of the Velocity Field of F and G Dwarfs in the Solar Neighborhood as a Function of Age
• Searching for Solar Siblings in APOGEE and $Gaia$ DR2 with N-body Simulations
• Chemo-Dynamical Clustering applied to APOGEE data: Re-Discovering Globular Clusters
• Velocity-space substructure from nearby RAVE and SDSS stars
• The Dynamical Response of Dark Matter to Galaxy Evolution Affects Direct-Detection Experiments
• Effect of orbital trapping by bar resonances in the local U-V velocity field
• The ACTIONFINDER: An unsupervised deep learning algorithm for calculating actions and the acceleration field from a set of orbit segments
• High-speed stars. II. An unbound star, young stars, bulge metal-poor stars, and Aurora candidates
• How the bar properties affect the induced spiral structure
• The velocity distribution in the solar neighbourhood from the LAMOST pilot survey
• Frequencies, chaos and resonances: a study of orbital parameters of nearby thick disc and halo stars
• The local rotation curve of the Milky Way based on SEGUE and RAVE data
• Asymmetric metallicity patterns in the stellar velocity space with RAVE
• Impact of bar resonances in the velocity-space distribution of the solar neighbourhood stars in a self-consistent $N$-body Galactic disc simulation
• Relationship between the Velocity Ellipsoids of Galactic-Disk Stars and their Ages and Metallicities
• Applying Noether's theorem to matter in the Milky Way: evidence for external perturbations and non-steady-state effects from Gaia Data Release 2
• Radial Wave in the Galactic Disk: New Clues to Discriminate Different Perturbations
• Local Stellar Kinematics from RAVE data -- VIII. Effects of the Galactic Disc Perturbations on Stellar Orbits of Red Clump Stars
• Mapping the Asymmetric Thick Disk: II Distance, Size and Mass of the Hercules Thick Disk Cloud
• Milky Way chemo-dynamics in the era of Gaia
• Signatures of the Galactic bar on stellar kinematics unveiled by APOGEE
• Role of galactic bars in the formation of spiral arms: A study through orbital and escape dynamics -- I
• Tracing the Origin of Moving Groups. III. Detecting Moving Groups in The LAMOST DR7
• Hercules and Wolf 630 Stellar Streams and Galactic Bar Kinematics
• Warp evidences in precessing galactic bar models
• Bar-driven dispersal of Galactic substructure
• Quantifying Chaos in Models of the Solar Neighbourhood
• Milky Way-like galaxies: stellar population properties of dynamically defined disks, bulges and stellar halos
• Influence of the Galactic bar on the kinematics of the disc stars with Gaia EDR3 data
• The Aquarius Co-Moving Group is Not a Disrupted Classical Globular Cluster
• Peeking beneath the precision floor -- II. Probing the chemo-dynamical histories of the potential globular cluster siblings, NGC 288 and NGC 362
• Evidence of the Galactic outer ring R1R2' from young open clusters and OB-associations
• Chemodynamic evolution of Sun-like stars in nearby moving groups
• Accelerated phase-mixing in the stellar halo due to a rotating bar
• Probing Axial Symmetry Breaking in the Galaxy with Gaia Data Release 2
• Quantifying the influence of bars on action-based dynamical modelling of disc galaxies
• Stellar substructures in the solar neighbourhood IV. Kinematic Group 1 in the Geneva-Copenhagen survey
• Patterns in the Outer Parts of Galactic Disks
• Radial and azimuthal gradients of the moving groups in Gaia DR3: The slow/fast bar degeneracy problem
• Quantifying torque from the Milky Way bar using Gaia DR2
• Probing the strength of radial migration via churning by using metal-rich red giant stars from APOGEE
• A non-axisymmetric potential for the Milky Way disk
• The Ophiuchus stream progenitor: a new type of globular cluster and its possible Sagittarius connection
• Gaia DR2 white dwarfs in the Hercules stream
• Radial migration of the Sun in galactic disk
• On the Migration Origin of the Hercules Moving Group with GAIA, LAMOST, APOGEE, and GALAH Surveys
• Dynamically Produced Moving Groups in Interacting Simulations
• The tilt of the velocity ellipsoid of different Galactic disk populations
• The Lives of Stars: Insights From the TGAS-RAVE-LAMOST Dataset
• Dynamical Origin for the Collinder 132-Gulliver 21 Stream: A Mixture of three Co-Moving Populations with an Age Difference of 250 Myr
• Dynamical streams in the local stellar halo
• Systematic motions in the Galactic plane found in the Hipparcos Catalogue using Herschel's Method
• Self-consistent modelling of our Galaxy with Gaia data
• Axial Asymmetry Studies in Gaia Data Release 2 Yield the Pattern Speed of the Galactic Bar
• Chemodynamical Ages of Small-Scale Kinematic Structures of the Galactic Disc in the Solar Neighborhood from ~250,000 K and M Dwarfs
• Gas Dynamics in the Central Molecular Zone and its connection with the Galactic Bar
• The vertex coordinates of the Galaxy's stellar systems according to the Gaia DR3 catalogue
• Rediscovering the Galactic outer disk with LAMOST data
• Dynamical mirages: how bar-induced resonant trapping can mimic substructure clustering in dynamical parameter spaces
• Dynamical models of the elliptical galaxy NGC 4494
• Probing the origins. I. Generalised Additive Model inference of birth radii for Milky Way stars in the solar vicinity
• Tracing the origin of moving groups I. The γ Leo moving group with high resolution spectra from the Subaru Telescope
• The nature of the KFR08 stellar stream
• Dark matter spiral arms in Milky Way-like halos
• A study of full space motions of outer Galactic disk A and F stars in two deep pencil-beams
• From moving groups to star formation in the Solar Neighborhood
• Collisionless Boltzmann equation approach for the study of stellar discs within barred galaxies
• Kinematic origin of white dwarfs in the solar neighborhood
• Spatial orientation and shape of the velocity ellipsoids of the Gaia DR3 giants and subgiants in the Galactic plane
• Large-Scale Stellar Age-Velocity Spiral Pattern in NGC 4030
• The star-formation history of the Milky Way Galaxy
• On the origin of the Hercules group: I. chemical signatures indicating the outer bar origin
• A Statistical Relation between Mass, Age and Velocity Dispersion in the Solar Neighborhood
• The first r-process enhanced star confirmed to be a member of the Galactic bulge
• The Galactic Kinematics of Mira Variables
• Radial Mixing due to Spiral-Bar Resonance Overlap: Implications to the Milky Way
• Stellar halo striations from assumptions of axisymmetry
• The chemodynamical evolution of the Milky Way disc -- A new modeling approach
• The barred inner Milky Way: dynamical models from surveys
• Resolving local and global kinematic signatures of satellite mergers with billion particle simulations
• Resonant Effects of a Bar on the Galactic Disk Kinematics Perpendicular to Its Plane
• A Wave-Corrected Assessment of the Local Midplane
• Signatures of the Galactic bar in high-order moments of proper motions measured by Gaia
• Moving Groups in the Solar Neighborhood with Gaia, APOGEE, GALAH, and LAMOST: Dynamical Effects Gather Gas and the Ensuing Star Formation Plays an Important Role in Shaping the Stellar Velocity Distributions
• Solar twins in Gaia DR3 GSP-Spec II. Age distribution and its implications for the Sun's migration
• Quasilinear drift kinetic theory of alpha particle transport by neoclassical tearing modes
• Optimal Emergency Frequency Control Based on Coordinated Droop in Multi-Infeed Hybrid AC-DC System
• Chemo-dynamical reconstruction of Milky Way globular cluster progenitors: Age-metallicity relations and the universality of multiple stellar populations
• Using synthetic emission maps to constrain the structure of the Milky Way
• Quadrupole signature as a kinematic diagnostic to constrain bar properties : implications for the Milky Way
• How galaxies form: Mass assembly from chemical abundances in the era of large surveys
• The COMBS Survey -- III. The Chemodynamical Origins of Metal-Poor Bulge Stars
• Determining the Galactic Bar Parameters based on the Hercules and Wolf 630 Stellar Streams
• Search for Stellar Streams Based on Data from the RAVE5 and Gaia TGAS Catalogues
• Smart: A program to automatically compute accelerations and variational equations
• No Stream Left Unscathed: The imprint of a host galaxy
• Wrinkles in Time. II. Stellar Age Trends in Kinematic Signatures from Transient Spiral Structure
• A family of potential-density pairs for galactic bars
• Perturbed distribution functions with accurate action estimates for the Galactic disc
• Correlation between the two-armed $V_R$ spiral in the $Z$--$V_Z$ plane and moving groups