Speaker
Jeremy Sakstein
(University of Pennsylvania)
Description
Modified gravity models with screening mechanisms, such as galileons, are prime dark energy candidates but they are notoriously difficult to test. In this talk, I will discuss a new scenario for testing galileons. Black holes do not feel the galileon force and, as a consequence, the supermassive black holes in galaxies falling into clusters should be offset from the galactic centre by a significant amount. I will show how this can already be used to place new constraints using nearby clusters, and how future surveys could constrain these theories to new levels.
| Presentation type | Parallel talk |
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Author
Jeremy Sakstein
(University of Pennsylvania)
