http://arxiv.org/abs/1803.08683
Modified Newtonian Dynamics has one free parameter and requires an interpolation function to recover the normal Newtonian limit. We here show that this interpolation function is unnecessary in a recently proposed covariant completion of Erik Verlinde’s emergent gravity, and that Verlinde’s approach moreover fixes the function’s one free parameter. The so-derived correlation between the observed acceleration (inferred from rotation curves) and the gravitational acceleration due to merely the baryonic matter fits well with data. We then argue that the redshift-dependence of galactic rotation curves could offer a way to tell apart different versions of modified gravity from particle dark matter.
S. Hossenfelder and T. Mistele
Mon, 26 Mar 18
15/43
Comments: 7 pages, 4 figures
You must be logged in to post a comment.