The Local Dark Matter Density from SDSS-SEGUE G-dwarfs

Abstract

We derive the local dark matter density by applying the integrated Jeans equation method from Silverwood et al. (2016) to SDSS-SEGUE G-dwarf data processed and presented by Büdenbender et al. (2015). We use the MultiNest Bayesian nested sampling software to fit a model for the baryon distribution, dark matter and tracer stars, including a model for the 'tilt term' that couples the vertical and radial motions, to the data. The $\alpha$-young population from Büdenbender et al. (2015) yields the most reliable result of ${\rho }_{\mathrm{DM}}=0.46_{-0.09}^{+0.07}{\mathrm{GeV}\mathrm{cm}}^{-3}=0.012_{-0.002}^{+0.001}{\mathrm{M}}_{\odot }{\mathrm{pc}}^{-3}$. Our analyses yield inconsistent results for the $\alpha$-young and $\alpha$-old data, pointing to problems in the tilt term and its modelling, the data itself, the assumption of a flat rotation curve, or the effects of disequilibria.

17 pages, 10 figures, submitted to MNRAS

References in corpus (10)

• The Local Dark Matter Density
• The Milky Way's circular velocity curve between 4 and 14 kpc from APOGEE data
• 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 Vertical Structure of Warm Ionised Gas in the Milky Way
• A new determination of the local dark matter density from the kinematics of K dwarfs
• Bending and Breathing Modes of the Galactic Disk
• Weighing the local dark matter with RAVE red clump stars
• Galactoseismology and the Local Density of Dark Matter
• The intricate Galaxy disk: velocity asymmetries in Gaia-TGAS

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