The Milky Way's Stellar Disk

Abstract

A suite of vast stellar surveys mapping the Milky Way, culminating in the Gaia mission, is revolutionizing the empirical information about the distribution and properties of stars in the Galactic stellar disk. We review and lay out what analysis and modeling machinery needs to be in place to test mechanisms of disk galaxy evolution and to stringently constrain the Galactic gravitational potential, using such Galactic star-by-star measurements. We stress the crucial role of stellar survey selection functions in any such modeling; and we advocate the utility of viewing the Galactic stellar disk as made up from `mono-abundance populations' (MAPs), both for dynamical modeling and for constraining the Milky Way's evolutionary processes. We review recent work on the spatial and kinematical distribution of MAPs, and lay out how further study of MAPs in the Gaia era should lead to a decisively clearer picture of the Milky Way's dark matter distribution and formation history.

Astron. Astrophys. Rev., in press

References in corpus (45)

• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• Galactic star formation and accretion histories from matching galaxies to dark matter haloes
• Trigonometric Parallaxes of Massive Star Forming Regions: VI. Galactic Structure, Fundamental Parameters and Non-Circular Motions
• The Radial Velocity Experiment (RAVE): first data release
• New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey
• The Milky Way's Circular Velocity Curve to 60 kpc and an Estimate of the Dark Matter Halo Mass from Kinematics of ~2400 SDSS Blue Horizontal Branch Stars
• alpha-, r-, and s-process element trends in the Galactic thin and thick disks
• Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program.Galactic stellar populations and planets
• The Milky Way Tomography with SDSS: II. Stellar Metallicity
• The UKIDSS Galactic Plane Survey
• LAMOST Experiment for Galactic Understanding and Exploration (LEGUE) The survey science plan
• 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
• Making Galaxies in a Cosmological Context: The Need for Early Stellar Feedback
• The Milky Way's circular velocity curve between 4 and 14 kpc from APOGEE data
• Structure and Evolution of Nearby Stars with Planets II. Physical Properties of ~1000 Cool Stars from the SPOCS Catalog
• On the mass-to-light ratio of the local Galactic disc and the optical luminosity of the Galaxy
• On the local dark matter density
• Outer structure of the Galactic warp and flare: explaining the Canis Major over-density
• The SEGUE Stellar Parameter Pipeline. II. Validation with Galactic Globular and Open Clusters
• Triaxial orbit based galaxy models with an application to the (apparent) decoupled core galaxy NGC 4365
• Galactic Rotation and Solar Motion from Stellar Kinematics
• Thin, thick and dark discs in LCDM
• Actions for axisymmetric potentials
• Accretion of gas onto nearby spiral galaxies
• Bars in Disk-Dominated and Bulge-Dominated Galaxies at z~0: New Insights from ~3600 SDSS Galaxies
• A First Constraint on the Thick Disk Scale Length: Differential Radial Abundances in K Giants at Galactocentric Radii 4, 8, and 12 kpc
• Radial Migration Does Little for Galactic Disc Thickening
• APOGEE: The Apache Point Observatory Galactic Evolution Experiment
• A new determination of the local dark matter density from the kinematics of K dwarfs
• Galactic Stellar Populations in the Era of SDSS and Other Large Surveys
• Broken degeneracies: the rotation curve and velocity anisotropy of the Milky Way halo
• New Constraints on the Galactic Bar
• The Extended HST Supernova Survey: The Rate of SNe Ia at z>1.4 Remains Low
• Galactic Globular and Open Clusters in the Sloan Digital Sky Survey. II. Test of Theoretical Stellar Isochrones
• More dynamical models of our Galaxy
• The expected performance of stellar parametrization with Gaia spectrophotometry
• The chemical evolution of a Milky Way-like galaxy: the importance of a cosmologically motivated infall law
• The kinematics of late type stars in the solar cylinder studied with SDSS data
• Angle-action estimation in a general axisymmetric potential
• The ability of intermediate-band Stromgren photometry to correctly identify dwarf, subgiant, and giant stars and provide stellar metallicities and surface gravities
• Lifting the Dusty Veil With Near- and Mid-Infrared Photometry: III. Two-Dimensional Extinction Maps of the Galactic Midplane Using the Rayleigh-Jeans Color Excess Method
• Estimation of Galactic model parameters in high latitudes with 2MASS
• Slicing The Monoceros Overdensity with Suprime-Cam

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• Missing dark matter in dwarf galaxies?
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• In the thick of it: metal-poor disc stars in RAVE
• Impact of radial migration on stellar and gas radial metallicity distribution
• 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
• Dark Matter as a Trigger for Periodic Comet Impacts
• Identifying resonances of the Galactic bar in Gaia DR2: I. Clues from action space
• Dissecting simulated disc galaxies I: the structure of mono-age populations
• Pulsars and Gravity
• The GALAH Survey: Chemodynamics of the Solar Neighbourhood
• Aurigaia: mock Gaia DR2 stellar catalogues from the Auriga cosmological simulations
• Masses and Ages for 230,000 LAMOST Giants, via Their Carbon and Nitrogen Abundances
• Detecting Dark Matter Substructures around the Milky Way with Gaia
• Galactic Chemical Evolution: the Impact of the 13C-pocket Structure on the s-process Distribution
• Fundamental stellar parameters and metallicities from Bayesian spectroscopy. Application to low- and high-resolution spectra
• The Stellar Halo of the Galaxy is Tilted & Doubly Broken
• A Distant Echo of Milky Way Central Activity closes the Galaxy's Baryon Census
• Stellar mass distribution and star formation history of the Galactic disk revealed by mono-age stellar populations from LAMOST
• The Profile of the Galactic Halo from Pan-STARRS1 3$\pi$ RR Lyrae
• The merger and assembly histories of Milky Way- and M31-like galaxies with TNG50: disk survival through mergers
• DISCO: A 3D Moving-Mesh Magnetohydrodynamics Code Designed for the Study of Astrophysical Disks
• The Structural Evolution of Milky Way-like Star Forming Galaxies since z~1.3
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• Scaling K2. VI. Reduced Small Planet Occurrence in High Galactic Amplitude Stars
• Chasing Accreted Structures within Gaia DR2 using Deep Learning
• The Three-Phase Evolution of the Milky Way
• Mapping the Galactic Disk with the LAMOST and Gaia Red Clump Sample VII: the Stellar Disk Structure Revealed by the Mono-abundance Populations
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