A dearth of dark matter in strong gravitational lenses
arXiv:1310.6148 · doi:10.1093/mnras/stu057
Abstract
I show that the lensing masses of the SLACS sample of strong gravitational lenses are consistent with the stellar masses determined from population synthesis models using the Salpeter IMF. This is true in the context of both General Relativity and modified Newtonian dynamics, and is in agreement with the expectation of MOND that there should be little classical discrepancy within the high surface brightness regions probed by strong gravitational lensing. There is also dynamical evidence from this sample supporting the claim that the mass-to-light ratio of the stellar component increases with the velocity dispersion.
4 pages, 3 figures, table of lenses added, more discussion of lensing with MOND. Accepted for publication in MNRAS, main journal
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- Virial theorem in clusters of galaxies with MOND
- On the problem of deformed spherical systems in Modified Newtonian Dynamics
- New Analysis of Dark Matter in Elliptical Galaxies
- Dynamics of Companion Galaxies of Early-Type Galaxies
- On the Orbital Velocity of Isolated Galaxy Pairs: a test of gravity in the low acceleration regime