Superfluid dark matter in tension with weak gravitational lensing data

Abstract

Superfluid dark matter (SFDM) is a model that promises to reproduce the successes of both particle dark matter on cosmological scales and those of Modified Newtonian Dynamics (MOND) on galactic scales. SFDM reproduces MOND only up to a certain distance from the galactic center, and only for kinematic observables: It does not affect trajectories of light. We test whether this is consistent with a recent analysis of weak gravitational lensing that has probed accelerations around galaxies to unprecedentedly large radii. This analysis found the data to be close to the prediction of MOND, suggesting they might be difficult to fit with SFDM. To investigate this matter, we solved the equations of motion of the model and compared the result to observational data. Our results show that the SFDM model is incompatible with the weak-lensing observations, at least in its current form.

arXiv comment20 pages, 12 figures

References in corpus (17)

• One Law To Rule Them All: The Radial Acceleration Relation of Galaxies
• Theory of Dark Matter Superfluidity
• A new relativistic theory for Modified Newtonian Dynamics
• Clusters of galaxies with modified Newtonian dynamics (MOND)
• GW170817 Falsifies Dark Matter Emulators
• Are sterile neutrinos consistent with clusters, the CMB and MOND?
• Problems for MOND in Clusters and the Ly-alpha Forest
• The Weak Lensing Radial Acceleration Relation: Constraining Modified Gravity and Cold Dark Matter theories with KiDS-1000
• Phenomenological consequences of superfluid dark matter with baryon-phonon coupling
• Aether scalar tensor theory: Linear stability on Minkowski space
• The Milky Way's rotation curve with superfluid dark matter
• Does GW170817 falsify MOND?
• Strong lensing with superfluid dark matter
• Aether scalar tensor theory confronted with weak lensing data at small accelerations
• A cautionary tale in fitting galaxy rotation curves with Bayesian techniques: does Newton's constant vary from galaxy to galaxy?
• Three problems of superfluid dark matter and their solution
• The role of the chemical potential in coupling superfluid dark matter to baryons

Cited by in corpus (2)

• Strong constraints on the gravitational law from $Gaia$ DR3 wide binaries
• Radial acceleration relation of galaxies with joint kinematic and weak-lensing data