The Tight Empirical Relation between Dark Matter Halo Mass and Flat Rotation Velocity for Late-Type Galaxies

Abstract

We present a new empirical relation between galaxy dark matter halo mass (${\mathrm{M}}_{\mathrm{halo}}$) and the velocity along the flat portion of the rotation curve (${\mathrm{V}}_{\mathrm{flat}}$), derived from 120 late-type galaxies from the SPARC database. The orthogonal scatter in this relation is comparable to the observed scatter in the baryonic Tully-Fisher relation (BTFR), indicating a tight coupling between total halo mass and galaxy kinematics at $r\ll R_{\mathrm{vir}}$. The small vertical scatter in the relation makes it an extremely competitive estimator of total halo mass. We demonstrate that this conclusion holds true for different priors on $M_{\ast }/L_{[3.6\mu ]}$ that give a tight BTFR, but requires that the halo density profile follows DC14 rather than NFW. We provide additional relations between ${\mathrm{M}}_{\mathrm{halo}}$ and other velocity definitions at smaller galactic radii (i.e. ${\mathrm{V}}_{2.2}$, ${\mathrm{V}}_{\mathrm{eff}}$, and ${\mathrm{V}}_{\max }$) which can be useful for estimating halo masses from kinematic surveys, providing an alternative to abundance matching. Furthermore, we constrain the dark matter analog of the Radial Acceleration Relation and also find its scatter to be small, demonstrating the fine balance between baryons and dark matter in their contribution to galaxy kinematics.

arXiv comment6 pages, 4 figures, Accepted to MNRAS Letters

References in corpus (37)

• The Structure of Cold Dark Matter Halos
• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• The Formation of Galactic Disks
• Cold dark matter haloes in the Planck era: evolution of structural parameters for Einasto and NFW profiles
• High-Resolution Rotation Curves and Galaxy Mass Models from THINGS
• The Baryonic Tully-Fisher Relation
• How supernova feedback turns dark matter cusps into cores
• SPARC: Mass Models for 175 Disk Galaxies with Spitzer Photometry and Accurate Rotation Curves
• Concentration, Spin and Shape of Dark Matter Haloes as a Function of the Cosmological Model: WMAP1, WMAP3 and WMAP5 results
• The Radial Acceleration Relation in Rotationally Supported Galaxies
• The Cores of Dwarf Galaxy Halos
• The Baryonic Tully-Fisher Relation of Gas Rich Galaxies as a Test of LCDM and MOND
• The Ursa Major Cluster of Galaxies. V ; HI Rotation Curve Shapes and the Tully-Fisher Relations
• Dark Halos: The Flattening of the Density Cusp by Dynamical Friction
• One Law To Rule Them All: The Radial Acceleration Relation of Galaxies
• Galaxies in LCDM with Halo Abundance Matching: luminosity-velocity relation, baryonic mass-velocity relation, velocity function and clustering
• A mass-dependent density profile for dark matter haloes including the influence of galaxy formation
• The small scatter of the baryonic Tully-Fisher relation
• Distances to Galaxies from the Correlation Between Luminosities and Linewidths. III. Cluster Template and Global Measurements of H0
• Color--Mass-to-Light Ratio Relations for Disk Galaxies
• The Mass Discrepancy-Acceleration Relation: Disk Mass and the Dark Matter Distribution
• Bar-driven dark halo evolution: a resolution of the cusp--core controversy
• The DiskMass Survey. VII. The distribution of luminous and dark matter in spiral galaxies
• The Kinematic Connection Between Galaxies and Dark Matter Haloes
• Semi-Analytical Models for the Formation of Disk Galaxies: I. Constraints from the Tully-Fisher Relation
• Gravitational Heating Helps Make Massive Galaxies Red and Dead
• Testing Feedback-Modified Dark Matter Haloes with Galaxy Rotation Curves: Estimation of Halo Parameters and Consistency with $\Lambda$CDM
• Galaxy formation in pre-processed dark halos
• A statistical investigation of the mass discrepancy-acceleration relation
• The Tully-Fisher and mass-size relations from halo abundance matching
• GHASP: an Hα kinematic survey of spiral and irregular galaxies -- IX. The NIR, stellar and baryonic Tully-Fisher relations
• Can the Tully-Fisher Relation be the Result of Initial Conditions?
• The scatter, residual correlations and curvature of the SPARC baryonic Tully-Fisher relation
• Dark halo response and the stellar initial mass function in early-type and late-type galaxies
• The baryonic Tully-Fisher relation and galactic outflows
• Testing baryon-induced core formation in $\Lambda$CDM: A comparison of the DC14 and coreNFW dark matter halo models on galaxy rotation curves
• Stellar Feedback and the Energy Budget of Late-Type Galaxies: Missing Baryons and Core Creation

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