The Milky Way's rotation curve out to 100 kpc and its constraint on the Galactic mass distribution

Abstract

The rotation curve (RC) of the Milky Way out to $\sim$ 100 kpc has been constructed using $\sim$ 16,000 primary red clump giants (PRCGs) in the outer disk selected from the LSS-GAC and the SDSS-III/APOGEE survey, combined with $\sim$ 5700 halo K giants (HKGs) selected from the SDSS/SEGUE survey. To derive the RC, the PRCG sample of the warm disc population and the HKG sample of halo stellar population are respectively analyzed using a kinematical model allowing for the asymmetric drift corrections and re-analyzed using the spherical Jeans equation along with measurements of the anisotropic parameter $\beta$ currently available. The typical uncertainties of RC derived from the PRCG and HKG samples are respectively 5-7 km/s and several tens km/s. We determine a circular velocity at the solar position, $V_c(R_0)$ = 240 $\pm$ 6 km/s and an azimuthal peculiar speed of the Sun, $V_{\odot }$ = 12.1 $\pm$ 7.6 km/s, both in good agreement with the previous determinations. The newly constructed RC has a generally flat value of 240 km/s within a Galactocentric distance $r$ of 25 kpc and then decreases steadily to 150 km/s at $r$ $\sim$ 100 kpc. On top of this overall trend, the RC exhibits two prominent localized dips, one at $r$ $\sim$ 11 kpc and another at $r$ $\sim$ 19 kpc. From the newly constructed RC, combined with other constraints, we have built a parametrized mass model for the Galaxy, yielding a virial mass of the Milky Way's dark matter halo of $0.90_{-0.08}^{+0.07}\times 10^{12}$ ${\mathrm{M}}_{\odot }$ and a local dark matter density, ${\rho }_{\odot ,\mathrm{dm}}=0.32_{-0.02}^{+0.02}$ GeV cm${}^{-3}$.

arXiv commentMNRAS accepted, 18 pages, 15 figures, 4 tables

References in corpus (90)

• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Where are the missing galactic satellites?
• The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III
• Profiles of dark haloes: evolution, scatter, and environment
• Statistical Properties of X-ray Clusters: Analytic and Numerical Comparisons
• SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems
• Local Kinematics and the Local Standard of Rest
• The Aquarius Project: the subhalos of galactic halos
• The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
• The Ninth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Baryon Oscillation Spectroscopic Survey
• Trigonometric Parallaxes of High Mass Star Forming Regions: the Structure and Kinematics of the Milky Way
• The Milky Way Tomography with SDSS: I. Stellar Number Density Distribution
• SEGUE: A Spectroscopic Survey of 240,000 stars with g=14-20
• Local stellar kinematics from Hipparcos data
• The Radial Velocity Experiment (RAVE): first data release
• The Proper Motion of Sgr A*: II. The Mass of Sgr A*
• Mass models of the Milky Way
• 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
• ASPCAP: The Apogee Stellar Parameter and Chemical Abundances Pipeline
• LCDM-based models for the Milky Way and M31 I: Dynamical Models
• LAMOST Experiment for Galactic Understanding and Exploration (LEGUE) The survey science plan
• The SEGUE Stellar Parameter Pipeline. I. Description and Initial Validation Tests
• A novel determination of the local dark matter density
• 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
• The Local Dark Matter Density
• The accretion origin of the Milky Way's stellar halo
• The Data Reduction Pipeline for the Apache Point Observatory Galactic Evolution Experiment
• The Milky Way's circular velocity curve between 4 and 14 kpc from APOGEE data
• First GLIMPSE Results on the Stellar Structure of the Galaxy
• The dark matter density at the Sun's location
• Target Selection for the Apache Point Observatory Galactic Evolution Experiment (APOGEE)
• Mass models of the Milky Way
• On the mass-to-light ratio of the local Galactic disc and the optical luminosity of the Galaxy
• On the local dark matter density
• The SEGUE Stellar Parameter Pipeline. II. Validation with Galactic Globular and Open Clusters
• Unified Rotation Curve of the Galaxy -- Decomposition into de Vaucouleurs Bulge, Disk, Dark Halo, and the 9-kpc Rotation Dip --
• Galactic Rotation and Solar Motion from Stellar Kinematics
• The Milky Way stellar halo out to 40 kpc : Squashed, broken but smooth
• The radial velocity dispersion profile of the Galactic halo: Constraining the density profile of the dark halo of the Milky Way
• The wobbly Galaxy: kinematics north and south with RAVE red clump giants
• Substructure revealed by RR Lyraes in SDSS Stripe 82
• Does the Milky Way have a Maximal Disk?
• Spiral arms, bar shape and bulge microlensing in the Milky Way
• The Milky Way: An Exceptionally Quiet Galaxy; Implications for the formation of spiral galaxies
• The SEGUE Stellar Parameter Pipeline. III. Comparison with High-Resolution Spectroscopy of SDSS/SEGUE Field Stars
• Galactocentric Distance With the OGLE and Hipparcos Red Clump Stars
• Vertical distribution of Galactic disk stars I - Kinematics and metallicity
• Determination of the Local Dark Matter Density in our Galaxy
• The APOGEE red-clump catalog: Precise distances, velocities, and high-resolution elemental abundances over a large area of the Milky Way's disk
• On the Shoulders of Giants: Properties of the Stellar Halo and the Milky Way Mass Distribution
• The Milky Way Tomography with SDSS: III. Stellar Kinematics
• Constraining the Galaxy's dark halo with RAVE stars
• Kinematics of the stellar halo and the mass distribution of the Milky Way using BHB stars
• The Bar and Spiral Structure Legacy (BeSSeL) Survey: Mapping the Milky Way with VLBI Astrometry
• The Shape and Profile of the Milky Way Halo as Seen by the CFHT Legacy Survey
• Kinematics of SDSS subdwarfs: Structure and substructure of the Milky Way halo
• The LAMOST Stellar Parameter Pipeline at Peking University --- LSP3
• The Gravitational Potential Near the Sun From SEGUE K-dwarf Kinematics
• The SEGUE Stellar Parameter Pipeline. IV. Validation with an Extended Sample of Galactic Globular and Open Clusters
• Rotation Curve of the Milky Way out to $\sim$ 200 kpc
• Calibrations of Atmospheric Parameters Obtained from the First Year of SDSS-III APOGEE Observations
• The velocity dispersion and mass profile of the Milky Way
• LAMOST Spectroscopic Survey of the Galactic Anti-centre (LSS-GAC): target selection and the first release of value-added catalogues
• Kinematic modelling of the Milky Way using the RAVE and GCS stellar surveys
• Broken degeneracies: the rotation curve and velocity anisotropy of the Milky Way halo
• The radial profile and flattening of the Milky Way's stellar halo to $80$kpc from the SEGUE K-giant Survey
• Exploring the Variable Sky with LINEAR. II. Halo Structure and Substructure Traced by RR Lyrae Stars to 30 kpc
• Halo Star Streams in the Solar Neighborhood
• Detection of a radial velocity gradient in the extended local disc with RAVE
• Not too big, not too small: the dark halos of the dwarf spheroidals in the Milky Way
• The SEGUE K giant survey II: A Catalog of Distance Determinations for the SEGUE K giants in the Galactic Halo
• The Milky Way Rotation Curve and its Vertical Derivatives Inside the Solar Circle
• Velocity Dispersion Profile of the Milky Way Halo
• The Caustic Ring Model of the Milky Way Halo
• The power spectrum of the Milky Way: Velocity fluctuations in the Galactic disk
• Determination of the Local Standard of Rest using the LSS-GAC DR1
• Evidence for Ring Caustics in the Milky Way
• The incorrect rotation curve of the Milky Way
• The Velocity Anisotropy of Distant Milky Way Halo Stars from Hubble Space Telescope Proper Motions
• The tilt of the velocity ellipsoid in the Milky Way disk
• The Information Of The Milky Way From 2MASS Whole Sky Star Count: The Structure Parameters
• Haloes light and dark: dynamical models of the stellar halo and constraints on the mass of the Galaxy
• A "Light," Centrally-Concentrated Milky Way Halo?
• Very Metal-Poor Outer-Halo Stars with Round Orbits
• Metallicity Bias in the Kinematics of the Milky Way Stellar Halo
• RR Lyrae in XSTPS: The halo density profile in the North Galactic Cap
• Extension of the C star rotation curve of the Milky Way to 24 kpc
• Rotational signature of the Milky Way stellar halo
• Determination of the Galactic Rotation Curve from OB Stars
• The Dark Matter Density in the Solar Neighborhood reconsidered

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