The spatial structure of mono-abundance sub-populations of the Milky Way disk

Abstract

The spatial, kinematic, and elemental-abundance structure of the Milky Way's stellar disk is complex, and has been difficult to dissect with local spectroscopic or global photometric data. Here, we develop and apply a rigorous density modeling approach for Galactic spectroscopic surveys that enables investigation of the global spatial structure of stellar sub-populations in narrow bins of [α/Fe] and [Fe/H], using 23,767 G-type dwarfs from SDSS/SEGUE. We fit models for the number density of each such mono-abundance component, properly accounting for the complex spectroscopic SEGUE sampling of the underlying stellar population. We find that each mono-abundance sub-population has a simple spatial structure that can be described by a single exponential in both the vertical and radial direction, with continuously increasing scale heights (~200 pc to 1 kpc) and decreasing scale lengths (>4.5 kpc to 2 kpc) for increasingly older sub-populations, as indicated by their lower metallicities and [α/Fe] enhancements. That the abundance-selected sub-components with the largest scale heights have the shortest scale lengths is in sharp contrast with purely geometric `thick--thin disk' decompositions. To the extent that [α/Fe] is an adequate proxy for age, our results directly show that older disk sub-populations are more centrally concentrated, which implies inside-out formation of galactic disks. The fact that the largest scale-height sub-components are most centrally concentrated in the Milky Way is an almost inevitable consequence of explaining the vertical structure of the disk through internal evolution. Whether the simple spatial structure of the mono-abundance sub-components, and the striking correlations between age, scale length, and scale height can be plausibly explained by satellite accretion or other external heating remains to be seen.

ApJ, in press

References in corpus (20)

• The 2.5 m Telescope of the Sloan Digital Sky Survey
• alpha-, r-, and s-process element trends in the Galactic thin and thick disks
• The Milky Way Tomography with SDSS: II. Stellar Metallicity
• The SEGUE Stellar Parameter Pipeline. I. Description and Initial Validation Tests
• Riding the Spiral Waves: Implications of Stellar Migration for the Properties of Galactic Disks
• The accretion origin of the Milky Way's stellar halo
• The SEGUE Stellar Parameter Pipeline. II. Validation with Galactic Globular and Open Clusters
• The SEGUE Stellar Parameter Pipeline. III. Comparison with High-Resolution Spectroscopy of SDSS/SEGUE Field Stars
• Radial mixing and the transition between the thick and thin Galactic discs
• A First Constraint on the Thick Disk Scale Length: Differential Radial Abundances in K Giants at Galactocentric Radii 4, 8, and 12 kpc
• Galactic masers and the Milky Way circular velocity
• The SEGUE Stellar Parameter Pipeline. IV. Validation with an Extended Sample of Galactic Globular and Open Clusters
• The GALEX Arecibo SDSS survey: III. Evidence for the Inside-Out Formation of Galactic Disks
• Galactic Globular and Open Clusters in the Sloan Digital Sky Survey. II. Test of Theoretical Stellar Isochrones
• The Extended HST Supernova Survey: The Rate of SNe Ia at z>1.4 Remains Low
• Stellar populations across the NGC4244 truncated galactic disk
• Lick Indices in the Thin and Thick Disks of Edge-On Disk Galaxies
• The velocity distribution of nearby stars from Hipparcos data I. The significance of the moving groups
• On the 3 dimensional structure of edge-on disk galaxies
• An Improved Photometric Calibration of the Sloan Digital Sky Survey Imaging Data

Cited by in corpus (324)

• emcee: The MCMC Hammer
• The Galaxy in Context: Structural, Kinematic and Integrated Properties
• The mass distribution and gravitational potential of the Milky Way
• Chemical Cartography with APOGEE: Metallicity Distribution Functions and the Chemical Structure of the Milky Way Disk
• Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program.Galactic stellar populations and planets
• AGAMA: Action-based galaxy modelling architecture
• The age structure of stellar populations in the solar vicinity. Clues of a two-phase formation history of the Milky Way disk
• A direct dynamical measurement of the Milky Way's disk surface density profile, disk scale length, and dark matter profile at 4 kpc < R < 9 kpc
• Chemodynamical evolution of the Milky Way disk I: The solar vicinity
• 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
• Secular Evolution in Disk Galaxies
• The APOKASC Catalog: An Asteroseismic and Spectroscopic Joint Survey of Targets in the Kepler Fields
• On the local dark matter density
• The origin of accreted stellar halo populations in the Milky Way using APOGEE, $\text{Gaia}$, and the EAGLE simulations
• Inside Out and Upside Down: Tracing the Assembly of a Simulated Disk Galaxy Using Mono-Age Stellar Populations
• On Galactic density modeling in the presence of dust extinction
• Stars, Gas, and Dark Matter in the Solar Neighborhood
• Markov Chain Monte Carlo Methods for Bayesian Data Analysis in Astronomy
• Oxygen Abundances in Nearby FGK Stars and the Galactic Chemical Evolution of the Local Disk and Halo
• Chemodynamical evolution of the Milky Way disk II: Variations with Galactic radius and height above the disk plane
• The Milky Way's Stellar Disk
• The Gaia-ESO Survey: the Galactic Thick to Thin Disc transition
• Mirror dark matter: Cosmology, galaxy structure and direct detection
• The APOGEE red-clump catalog: Precise distances, velocities, and high-resolution elemental abundances over a large area of the Milky Way's disk
• Measurement of the Radius of Neutron Stars with High S/N Quiescent Low-mass X-ray Binaries in Globular Clusters
• The Bifurcated Age-Metallicity Relation of Milky Way Globular Clusters and its Implications For the Accretion History of the Galaxy
• The stellar population structure of the Galactic disk
• Evidence from APOGEE for the presence of a major building block of the halo buried in the inner Galaxy
• The Milky Way has no in-situ halo other than the heated thick disc. Composition of the stellar halo and age-dating the last significant merger with Gaia DR2 and APOGEE
• Dynamical heating across the Milky Way disc using APOGEE and $Gaia$
• Thin disc, Thick Disc and Halo in a Simulated Galaxy
• Using chemical tagging to redefine the interface of the Galactic disk and halo
• Life in the fast lane: a direct view of the dynamics, formation, and evolution of the Milky Way's bar
• On the Shoulders of Giants: Properties of the Stellar Halo and the Milky Way Mass Distribution
• Chemodynamics of the Milky Way. I. The first year of APOGEE data
• Tracing chemical evolution over the extent of the Milky Way's Disk with APOGEE Red Clump Stars
• The Gaia-ESO Survey: radial metallicity gradients and age-metallicity relation of stars in the Milky Way disk
• Constraining the Galaxy's dark halo with RAVE stars
• Estimating stellar birth radii and the time evolution of the Milky Way's ISM metallicity gradient
• On the Formation of Galactic Thick Disks
• The age-metallicity structure of the Milky Way disk
• Reconstructing the star formation history of the Milky Way disc(s) from chemical abundances
• Evolution of the Milky Way with radial motions of stars and gas I. The solar neighborhood and the thin and thick disk
• Chemical Cartography with APOGEE: Large-scale Mean Metallicity Maps of the Milky Way
• Star formation, supernovae, iron, and alpha: consistent cosmic and Galactic histories
• On the origin of the chemical bimodality of disk stars: A tale of merger and migration
• The Evolution and Origin of Ionized Gas Velocity Dispersion from $z\sim 2.6$ to $z\sim 0.6$ with KMOS${}^{3D}$
• Carbon, nitrogen and $\alpha$-element abundances determine the formation sequence of the Galactic thick and thin disks
• VINTERGATAN I: The origins of chemically, kinematically and structurally distinct discs in a simulated Milky Way-mass galaxy
• Machine-Learned Identification of RR Lyrae Stars from Sparse, Multi-band Data: the PS1 Sample
• Constraining the thick disc formation scenario of the Milky Way
• The Structure and Dynamical Evolution of the Stellar Disk of a Simulated Milky Way-Mass Galaxy
• Confirming chemical clocks: asteroseismic age dissection of the Milky Way disk(s)
• Measuring Radial Orbit Migration in the Milky Way Disk
• Kinematics and chemical properties of the Galactic stellar populations. The HARPS FGK dwarfs sample
• The Gravitational Potential Near the Sun From SEGUE K-dwarf Kinematics
• The Besancon Galaxy model renewed I. Constraints on the local star formation history from Tycho data
• When the Milky Way turned off the lights: APOGEE provides evidence of star formation quenching in our Galaxy
• The dominant epoch of star formation in the Milky Way formed the thick disc
• On the estimation of the Local Dark Matter Density using the rotation curve of the Milky Way
• Chemical Cartography with APOGEE: Multi-element abundance ratios
• Stellar Inventory of the Solar Neighborhood using Gaia DR1
• Bending and Breathing Modes of the Galactic Disk
• Kinematic modelling of the Milky Way using the RAVE and GCS stellar surveys
• Virialization of the inner CGM in the FIRE simulations and implications for galaxy discs, star formation and feedback
• Off the beaten path: Gaia reveals GD-1 stars outside of the main stream
• MaGICC Thick Disk I: Comparing a Simulated Disk Formed with Stellar Feedback to the Milky Way
• The radial profile and flattening of the Milky Way's stellar halo to $80$kpc from the SEGUE K-giant Survey
• The GALAH survey: An abundance, age, and kinematic inventory of the solar neighbourhood made with TGAS
• The effect of radial migration on galactic disks
• Radial Migration in Galactic Thick Discs
• The vertical motions of mono-abundance sub-populations in the Milky Way disk
• Modelling Element Abundances in Semi-analytic Models of Galaxy Formation
• Chemical Enrichment and Radial Migration in the Galactic Disk -- the origin of the [$\alpha /\mathrm{Fe}]$ Double Sequence
• The imprint of clump formation at high redshift. I. A disc alpha-abundance dichotomy
• The Inside-out Growth of the Galactic Disk
• Dissecting simulated disc galaxies II: the age-velocity relation
• Chemo-kinematics of the $Gaia$ RR Lyrae: the halo and the disc
• Measuring Distances and Reddenings for a Billion Stars: Towards A 3D Dust Map from Pan-STARRS 1
• Galactic Archaeology with asteroseismology and spectroscopy: Red giants observed by CoRoT and APOGEE
• The Galactic distribution of X-ray binaries and its implications for compact object formation and natal kicks
• The origin of diverse $\alpha$-element abundances in galaxy discs
• The Canada-France Imaging Survey: First results from the u-band component
• Oxygen abundances in low- and high-alpha field halo stars and the discovery of two field stars born in globular clusters
• A radial age gradient in the geometrically thick disk of the Milky Way
• Using Gaia DR2 to Constrain Local Dark Matter Density and Thin Dark Disk
• Elemental Abundances in Milky Way-like Galaxies from a Hierarchical Galaxy Formation Model
• Constraining planet structure and composition from stellar chemistry: trends in different stellar populations
• Extended distribution functions for our Galaxy
• The Stellar Halos of Massive Elliptical Galaxies II: Detailed Abundance Ratios at Large Radius
• Stellar parametrization from Gaia RVS spectra
• The GALAH Survey: Chemical tagging and chrono-chemodynamics of accreted halo stars with GALAH+ DR3 and $Gaia$ eDR3
• Galactic Doppelganger: The chemical similarity among field stars and among stars with a common birth origin
• Population Studies. XIII. A New Analysis of the Bidelman-MacConnell "Weak-Metal" Stars - Confirmation of Metal-Poor Stars in the Thick Disk of the Galaxy
• More dynamical models of our Galaxy
• The disc origin of the Milky Way bulge: Dissecting the chemo-morphological relations using N-body simulations and APOGEE
• In the Galactic disk, stellar [Fe/H] and age predict orbits and precise [X/Fe]
• A Systematic Look at the Effects of Radiative Feedback on Disc Galaxy Formation
• The Effects of Radial Migration on the Vertical Structure of Galactic Discs
• Age-resolved chemistry of red giants in the solar neighbourhood
• The age-velocity dispersion relation of the Galactic discs from LAMOST-Gaia data
• The Metallicity Distribution Functions of SEGUE G and K dwarfs: Constraints for Disk Chemical Evolution and Formation
• In the thick of it: metal-poor disc stars in RAVE
• On the ridges, undulations & streams in Gaia DR2: Linking the topography of phase-space to the orbital structure of an N-body bar
• Evolution over time of the Milky Way's disc shape
• On the metallicity dependance of the [Y/Mg] - age relation for solar type stars
• Mapping the Milky Way with LAMOST III: Complicated spatial structure in the outer disc
• The Gaia-ESO Survey: Characterisation of the [alpha/Fe] sequences in the Milky Way discs
• The K2-HERMES Survey: Age and Metallicity of the Thick Disc
• Why the Milky Way's bulge is not only a bar formed from a cold thin disk
• Mapping the Interstellar Medium with Near-Infrared Diffuse Interstellar Bands
• A Tale of Two Disks: Mapping the Milky Way with the Final Data Release of APOGEE
• 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
• Chemical evolution of the Milky Way: constraints on the formation of the thick and thin discs
• Evolution of the Milky Way with radial motions of stars and gas II. The evolution of abundance profiles from H to Ni
• Dissecting simulated disc galaxies I: the structure of mono-age populations
• The evolution of the Milky Way: New insights from open clusters
• The relationship between mono-abundance and mono-age stellar populations in the Milky Way disk
• A Milky Way with a massive, centrally concentrated thick disc: new Galactic mass models for orbit computations
• Bimodality of [α/Fe]-[Fe/H] distributions is a natural outcome of dissipative collapse and disc growth in Milky Way-type galaxies
• Revisiting long-standing puzzles of the Milky Way: the Sun and its vicinity as typical outer disk chemical evolution
• Bright Metal-Poor Stars from the Hamburg/ESO Survey. II. A Chemodynamical Analysis
• Determining Ages of APOGEE Giants with Known Distances
• Unveiling the Distinct Formation Pathways of the Inner and Outer Discs of the Milky Way with Bayesian Machine Learning
• Mapping a stellar disk into a boxy bulge: The outside-in part of the Milky Way bulge formation
• The distribution function of the Galaxy's dark halo
• The age-chemical abundance structure of the Galactic disc II: $\alpha$-dichotomy and thick disc formation
• The Stellar Halo of the Galaxy is Tilted & Doubly Broken
• The disc origin of the Milky Way bulge
• The quiescent phase of galactic disc growth
• Co-formation of the thin and thick discs revealed by APOGEE-DR16 and Gaia-DR2
• Interaction Cross Sections and Survival Rates for Proposed Solar System Member Planet Nine
• Chemical Evolution in the Milky Way: Rotation-based ages for APOGEE-Kepler cool dwarf stars
• Bending Waves in the Milky Way's disc from halo substructure
• Stellar mass distribution and star formation history of the Galactic disk revealed by mono-age stellar populations from LAMOST
• Local Simulations of Spiral Galaxies with the TIGRESS Framework: I. Star Formation and Arm Spurs/Feathers
• The Profile of the Galactic Halo from Pan-STARRS1 3$\pi$ RR Lyrae
• The relation between chemical abundances and kinematics of the Galactic disc with RAVE
• Mapping the Milky Way with LAMOST I: Method and overview
• Chemo-orbital evidence from SDSS/SEGUE G-type dwarf stars for a mixed origin of the Milky Way's thick disk
• Chemistry of the Most Metal-poor Stars in the Bulge and the z > 10 Universe
• Radial Flows and Angular Momentum Conservation in Galactic Chemical Evolution
• Age Demographics of the Milky Way Disk and Bulge
• Evidence for the Third Stellar Population in the Milky Way's Disk
• The Milky Way Tomography with SDSS. V. Mapping the Dark Matter Halo
• On the origin of the Galactic thin and thick discs, their abundance gradients and the diagnostic potential of their abundance ratios
• The Fornax 3D project: Thick disks in a cluster environment
• The Gaia-ESO Survey: New constraints on the Galactic disc velocity dispersion and its chemical dependencies
• The LMC geometry and outer stellar populations from early DES data
• A-type stars in the Canada-France Imaging Survey I. The stellar halo of the Milky Way traced to large radius by blue horizontal branch stars
• The tale of the tail -- disentangling the high transverse velocity stars in Gaia DR2
• Origin of the high v_los feature in the Galactic bar
• The Galactic Thick Disc density profile traced with RR Lyrae stars
• The Photometric Metallicity and Carbon Distributions of the Milky Way's Halo and Solar Neighborhood from S-PLUS Observations of SDSS Stripe 82
• The contribution of N-rich stars to the Galactic stellar halo using APOGEE red giants
• The Kinematic Properties of Milky Way Stellar Halo Populations
• The Bulge Metallicity Distribution from the APOGEE Survey
• Haloes light and dark: dynamical models of the stellar halo and constraints on the mass of the Galaxy
• Thick Disks in the Hubble Space Telescope Frontier Fields
• Unusual integrated metallicity profile of our Milky Way
• Impacts of a Flaring Star-forming Disc and Stellar Radial Mixing on the Vertical Metallicity Gradient
• Radial migration in a stellar galactic disc with thick components
• The Milky Way tomography with APOGEE: intrinsic density distribution and structure of mono-abundance populations
• Age-chemical abundance structure of the Galaxy I: Evidence for a late accretion event in the outer disc at z ~ 0.6
• ${}^7$Li evolution in the thin and thick disks of the Milky Way
• Chemical separation of disc components using RAVE
• Hypervelocity Star Candidates in the SEGUE G & K Dwarf Sample
• Planets Across Space and Time (PAST). I. Characterizing the Memberships of Galactic Components and Stellar Ages: Revisiting the Kinematic Methods and Applying to Planet Host Stars
• The GALAH survey: properties of the Galactic disk(s) in the solar neighbourhood
• Galactic Rotation from Cepheids with Gaia DR2 and Effects of Non-Axisymmetry
• Elemental Abundances in M31: A Comparative Analysis of Iron and Alpha Element Abundances in the Outer Disk, Giant Stellar Stream, and Inner Halo of M31
• Geometric properties of galactic discs with clumpy episodes
• Iron in galaxy groups and clusters: Confronting galaxy evolution models with a newly homogenised dataset
• Selection Functions in Astronomical Data Modeling, with the Space Density of White Dwarfs as Worked Example
• The Milky Way as a High Redshift Galaxy: The Importance of Thick Disk Formation in Galaxies
• The stellar velocity distribution function in the Milky Way galaxy
• Mapping the Galactic disk with the LAMOST and $Gaia$ Red clump sample: V: On the origin of the "young" [$\alpha$/Fe]-enhanced stars
• The Gaia-ESO Survey: the selection function of the Milky Way field stars
• Mapping the Galactic Disk with the LAMOST and Gaia Red Clump Sample VII: the Stellar Disk Structure Revealed by the Mono-abundance Populations
• Strong chemical tagging with APOGEE: 21 candidate star clusters that have dissolved across the Milky Way disc
• Dynamics for Galactic Archaeology
• The Three-Phase Evolution of the Milky Way
• Radial structure and formation of the Milky Way disc
• The QUEST RR Lyrae Survey: III. The Low Galactic Latitude Catalogue
• The SEGUE K Giant Survey. III. Quantifying Galactic Halo Substructure
• Metallicity Gradients of Thick Disk Dwarf Stars
• The asymmetric drift, the local standard of rest, and implications from RAVE data
• The AMBRE project: a study of Li evolution in the Galactic thin and thick discs
• Milky Way Red Dwarfs in the BoRG Survey; Galactic scale-height and the distribution of dwarfs stars in WFC3 imaging
• Stellar metallicity variations across spiral arms in disk galaxies with multiple populations
• The Great Inequality and the Dynamical Disintegration of the Outer Solar System
• The Milky Way's bulge star formation history as constrained from its bimodal chemical abundance distribution
• Constraints on Radial Migration in Spiral Galaxies - II. Angular momentum distribution and preferential migration
• The selection function of the RAVE survey
• The distribution of [$\alpha$/Fe] in the Milky Way disc
• The Vertical Metallicity Gradient of the Milky Way Disk: Transitions in [a/Fe] Populations
• Most "young" $\alpha$-rich stars have high masses but are actually old
• The impact of early massive mergers on the chemical evolution of Milky Way-like galaxies: insights from NIHAO-UHD simulations
• Vertical motion in the Galactic disc: unwinding the Snail
• A Near-infrared RR Lyrae census along the southern Galactic plane: the Milky Way's stellar fossil brought to light
• Bayes versus the virial theorem: inferring the potential of a galaxy from a kinematical snapshot
• A self-consistent dynamical model of the Milky Way disc adjusted to Gaia data
• The K2 Galactic Caps Project -- Going Beyond the \textit{Kepler} Field and Ageing the Galactic Disc
• Constraining the Galactic structure parameters with the XSTPS-GAC and SDSS photometric surveys
• The time evolution of the Milky Way's oxygen abundance gradient
• Chemical Evolution with Radial Mixing Redux: Extending beyond the Solar Neighborhood
• What the Milky Way bulge reveals about the initial metallicity gradients in the disc
• Mergers, tidal interactions, and mass exchange in a population of disc globular clusters
• NGC 5746: formation history of a massive disc-dominated galaxy
• High-resolution elemental abundance analysis of the open cluster IC 4756
• Deciphering the evolution of the Milky Way discs: Gaia APOGEE Kepler giant stars and the Besançon Galaxy Model
• Milky Way's Thick and Thin disk: Is there distinct thick disk?
• SDSS-IV MaNGA: Understanding Ionized Gas Turbulence using Integral Field Spectroscopy of 4500 Star-Forming Disk Galaxies
• Bars and boxy/peanut bulges in thin and thick discs. II. Can bars form in hot thick discs?
• Constraining the Galactic potential via action-based distribution functions for mono-abundance stellar populations
• Know thy star, know thy planet: Chemo-kinematically characterizing TESS targets
• Bars & boxy/peanut bulges in thin & thick discs: I. Morphology and line-of-sight velocities of a fiducial model
• The kinematics of local thick discs do not support an accretion origin
• Orbital Torus Imaging: Using Element Abundances to Map Orbits and Mass in the Milky Way
• APOGEE chemical tagging constraint on the maximum star cluster mass in the $\alpha$-enhanced Galactic disk
• Testing Dark Matter and Modifications to Gravity using Local Milky Way Observables
• On local dark matter density
• The structural evolution of galaxies with both thin and thick discs
• Sizing Up the Milky Way: A Bayesian Mixture Model Meta-Analysis of Photometric Scale Length Measurements
• Local stellar formation history from the 40 pc white dwarf sample
• Effects of the selection function on metallicity trends in spectroscopic surveys of the Milky Way
• The formation and survival of the Milky Way's oldest stellar disk
• Structure of the outer Galactic disc with Gaia-DR2
• Migration and kinematics in growing disc galaxies with thin and thick discs
• Multiwavelength Absolute Magnitudes and Colours of Red Clump Stars in {\it Gaia} Era
• Properties of thick discs formed in clumpy galaxies
• Resonant thickening of self-gravitating discs: imposed or self-induced orbital diffusion in the tightly wound limit
• The Flare and Warp of the Young Stellar Disk traced with LAMOST DR5 OB-type stars
• Supernovae and their host galaxies - V. The vertical distribution of supernovae in disc galaxies
• The GALAH Survey: Temporal Chemical Enrichment of the Galactic Disk
• Action-based Dynamical Modelling for the Milky Way Disk
• Variations in $\alpha$-element ratios trace the chemical evolution of the disk
• Weighing the Galactic disk in sub-regions of the solar neighbourhood using Gaia DR2
• Chemical Properties of the Local Galactic Disk and Halo. I. Fundamental Properties of 1,544 Nearby, High Proper-Motion M dwarfs and subdwarfs
• Extragalactic archeology with the GHOSTS Survey I. - Age-resolved disk structure of nearby low-mass galaxies
• The selection function of the LAMOST Spectroscopic Survey of the Galactic Anticentre
• Constraining the Milky Way assembly history with Galactic Archaeology. Ludwig Biermann Award Lecture 2015
• Evolution of galaxy habitability
• Completeness of the Gaia-verse V: Astrometry and Radial Velocity sample selection functions in Gaia EDR3
• Evolution of Disc Thickness in Simulated High-Redshift Galaxies
• The imprint of clump formation at high redshift. II. The chemistry of the bulge
• Did the Milky Way just light up? The recent star formation history of the Galactic disc
• Spiral arm kinematics for Milky Way stellar populations
• Universal properties of the high- and low-α disk: small intrinsic abundance scatter and migrating stars
• Warp and flare of the old Galactic disc as traced by the red clump stars
• On the Flaring of Thick Disc of Galaxies: Insights from Simulations
• Metallicity Distribution of Disk Stars and the Formation History of the Milky Way
• The difficulty of measuring the local dark matter density
• Exponential profiles from stellar scattering off interstellar clumps and holes in dwarf galaxy discs
• Red Clump stars from LAMOST II: the outer disc of the Milky Way
• Age-metallicity dependent stellar kinematics of the Milky Way disc from LAMOST and Gaia
• The Size and Shape of the Milky Way Disk and Halo from M-type Brown Dwarfs in the BoRG Survey
• Can ultralight dark matter explain the age-velocity dispersion relation of the Milky Way disc: A revised and improved treatment
• The Gaia-ESO Survey: Separating disk chemical substructures with cluster models
• Star Cluster Ages in the Gaia Era
• On the Chemical and Structural Evolution of the Galactic Disk
• The stellar metallicity distribution of the Milky Way from the BATC survey
• The [Y/Mg] chemical clock in the Galactic Disk: The influence of metallicity and Galactic population in the solar neighbourhood
• Cardinal kinematics: I. Rotation fields of the APOGEE Survey
• Near-Infrared Structure of Fast and Slow Rotating Disk Galaxies
• Action-based Dynamical Modeling for the Milky Way Disk: The Influence of Spiral Arms
• The vertical force in the Solar Neighbourhood using red clump stars in TGASxRAVE - Constraints on the local dark matter density
• The relative efficiencies of bars and clumps in driving disc stars to retrograde motion
• Tracing birth properties of stars with abundance clustering
• Properties of Galactic Dark Matter: Constraints from Astronomical Observations
• Searching for a kinematic signature of the moderately metal-poor stars in the Milky Way bulge using N-body simulations
• Selection functions of large spectroscopic surveys
• The Panchromatic Hubble Andromeda Treasury XX: The Disk of M31 is Thick
• The Milky Way Revealed by Variable Stars I: Sample Selection of RR Lyrae stars, and Evidence for the Merger History
• The local rotation curve of the Milky Way based on SEGUE and RAVE data
• Bars and boxy/peanut bulges in thin and thick discs III. Boxy/peanut bulge formation and evolution in presence of thick discs
• Exploring the Evolution of Massive Clumps in Simulations that Reproduce the Observed Milky Way α-element Abundance Bimodality
• Long-term relaxation of $1D$ self-gravitating systems
• Towards Studying Hierarchical Assembly in Real Time: A Milky Way Progenitor Galaxy at z = 2.36 under the Microscope
• seestar: Selection functions for spectroscopic surveys of the Milky Way
• Searching for Extragalactic Exoplanetary Systems: the Curious Case of BD+20 2457
• Milky Way chemo-dynamics in the era of Gaia
• A radiation transfer model for the Milky Way. II The global properties and large scale structure
• Exploring the impact of a rapidly decelerating bar on transforming bulge orbits into disc-like orbits
• Equilibrium axisymmetric halo model for the Milky Way and its implications for direct and indirect DM searches
• Closing the stellar labels gap: Stellar label independent evidence for [$\alpha /M$] information in Gaia BP/RP spectra
• How well can we unravel the accreted constituents of the Milky Way stellar halo? A test on cosmological hydrodynamical simulations
• Rediscovering the Milky Way with orbit superposition approach and APOGEE data II. Chrono-chemo-kinematics of the disc
• Estimation of the Radial Scale Length and Vertical Scale Height of the Galactic Thin Disk from Cepheids
• An Optical-UV-IR Survey of the North Celestial Cap: I. The Catalogue
• Quantifying the influence of bars on action-based dynamical modelling of disc galaxies
• The Photo-Astrometric Vertical Tracer Density of the Milky Way I: The Method
• Exploring the dependence of chemical traits on metallicity: chemical trends for red giant stars with asteroseismic ages
• On the radial metallicity gradient and radial migration effect of the Galactic disk
• The Radial Distribution of Mono-Metallicity Populations in the Galactic Disk as Evidence for Two-Phase Disk Formation
• The Lives of Stars: Insights From the TGAS-RAVE-LAMOST Dataset
• Turbulent gas-rich discs at high redshift: origin of thick stellar discs through 3D 'baryon sloshing'
• Dynamical models and Galaxy surveys
• A selection function toolbox for subsets of astronomical catalogues
• A Galactic Self-Portrait: Density Structure and Integrated Properties of the Milky Way Disk
• Bimodal Distribution of Galactic Disk Stars on the [alpha/Fe]-[Fe/H] Plane as a Possible Evidence of Discontinuous Radial Migration History
• Determining the Scale Length and Height of the Milky Way's Thick Disc Using RR~Lyrae
• Local disc model in view of Gaia DR1 and RAVE data
• Solar Space Density of the Red Clump Stars and the Scale-length of the Thin Disc
• The building blocks of the Milky Way halo using APOGEE and Gaia -- or -- Is the Galaxy a typical galaxy?
• Relatively young thick disks in star-forming late-type galaxies
• Galactic Stellar Populations from Photometric Metallicity Distribution Functions
• The disc origin of the Milky Way bulge: On the high velocity dispersion of metal-rich stars at low latitude
• Detailed Mapping of the Galactic Disk Structure in the Solar Neighborhood through LAMOST K Dwarfs
• A slow spin to win -- the gradual evolution of the proto-Galaxy to the old disc
• Astrometric mock observations for determining the local dark matter density
• Vertical kinematics of the thick disc at 4.5 < R < 9.5 kpc
• The chemodynamical evolution of the Milky Way disc -- A new modeling approach
• Quantifying chemical and kinematical properties of Galactic disks
• Estimating the baryonic masses of face-on spiral galaxies from stellar kinematics
• Chronos --- Taking the pulse of our Galactic neighbourhood (ESA Voyage 2050 White Paper)
• Rediscovering the Milky Way with orbit superposition approach and APOGEE data III. Panoramic view of the bulge
• New families in our Solar neighborhood: applying Gaussian Mixture models for objective classification of structures in the Milky Way and in simulations
• The age-metallicity structure of the Milky Way disc with APOGEE
• Neutron-capture elements record the ordered chemical evolution of the disc over time
• Galaxy simulations in the Gaia era
• Rapid early gas accretion for the inner Galactic disc
• Turning Points in the Age-Metallicity Relations -- Created by Late Satellite Infall and Enhanced by Radial Migration