Indefinitely Flat Circular Velocities and the Baryonic Tully-Fisher Relation from Weak Lensing

Abstract

We use a new deprojection formula to infer the gravitational potential around isolated galaxies from weak gravitational lensing. The results imply circular velocity curves that remain flat for hundreds of kpc, greatly extending the classic result from 21 cm observations. Indeed, there is no clear hint of a decline out to 1 Mpc, well beyond the expected virial radii of dark matter halos. Binning the data by mass reveals a correlation with the flat circular speed that closely agrees with the Baryonic Tully-Fisher Relation known from kinematic data. These results apply to both early and late type galaxies, indicating a common universal behavior.

14 pages, 4 figures; accepted for publication in ApJL

References in corpus (20)

• High-Resolution Rotation Curves and Galaxy Mass Models from THINGS
• 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
• One Law To Rule Them All: The Radial Acceleration Relation of Galaxies
• The fourth data release of the Kilo-Degree Survey: ugri imaging and nine-band optical-IR photometry over 1000 square degrees
• Galaxy And Mass Assembly (GAMA): Data Release 4 and the z < 0.1 total and z < 0.08 morphological galaxy stellar mass functions
• Dark matter halo properties of GAMA galaxy groups from 100 square degrees of KiDS weak lensing data
• Using The Baryonic Tully-Fisher Relation to Measure $H_o$
• The Relation between Stellar and Dynamical Surface Densities in the Central Regions of Disk Galaxies
• From light to baryonic mass: the effect of the stellar mass-to-light ratio on the Baryonic Tully-Fisher relation
• Galaxy And Mass Assembly (GAMA): Assimilation of KiDS into the GAMA database
• The Multi-Wavelength Tully-Fisher relation with spatially resolved HI kinematics
• The Weak Lensing Radial Acceleration Relation: Constraining Modified Gravity and Cold Dark Matter theories with KiDS-1000
• Stellar Populations and the Star Formation Histories of LSB Galaxies: III. Stellar Population Models
• Caught in the cosmic web: Environmental effect on halo concentrations, shape, and spin
• Gas dynamics in dwarf galaxies as testbeds for dark matter and galaxy evolution
• The Structure of Rapidly Rotating Late-Type Spiral Galaxies: I. Photometry, HI and Optical Kinematics
• The Effect of Adiabatic Compression on Dark Matter Halos and the Radial Acceleration Relation
• Incorporating baryon-driven contraction of dark matter halos in rotation curve fits
• From spirals to lenticulars: evidence from the rotation curves and mass models of three early-type galaxies

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