Displaying all lectures given by: Jeremy Sakstein

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 m... read more
Date: 08/03/2016 - 11:00 am

PIRSA:13100132  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Aspects of Modified Gravity
Speaker(s): Jeremy Sakstein
Abstract: In this talk I will give an introduction to some of my research into modified gravity over the last three years. I will begin by describing my implementation of chameleon models into supersymmetry and discuss some of the new features and cosmology that arise in this formalism. I will then change... read more
Date: 31/10/2013 - 11:00 am

PIRSA:13050009  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Detecting Modified Gravity in the Stars
Speaker(s): Jeremy Sakstein
Abstract: Screened Scalar-Tensor gravity such as chameleon and symmetron theories allow order one deviations from General Relativity on large scales whilst satisfying all local solar-system constraints. A lot of recent work has therefore focused on searching for observational signatures of thesemodels and con... read more
Date: 14/05/2013 - 11:00 am
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