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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:16030076  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Testing gravity using astrophysics
Speaker(s): Jeremy Sakstein
Abstract:

Alternative theories of gravity are popular alternatives to the LCDM model because they can self-accelerate without a cosmological constant. On smaller scales, consistency with solar system tests of gravity is achieved by utilising screening mechanisms, which act to hide fifth-forces locally. This makes them difficult to distinguish from general relativity. In this talk I will describe recent work using astrophysical objects---stars, galaxies, and clusters---as new and novel probes of alternative gravity theories.

Date: 08/03/2016 - 11:00 am
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