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SUMMARY:Testing General Relativity on cosmological scales and through scre
 ening mechanisms - Alessandra Silvestri (SISSA)
DTSTART:20130128T130000Z
DTEND:20130128T140000Z
UID:TALK42179@talks.cam.ac.uk
CONTACT:Camille Bonvin
DESCRIPTION:Future cosmological surveys\, combining galaxy counts and weak
  lensing measurements\, will map the evolution of matter perturbations and
  gravitational potentials from the matter dominated epoch until today. The
 se measurements will enable us to test the relationships between matter ov
 erdensities\, local curvature\, and the Newtonian potential on cosmologica
 l scales. These relationships can be modified in alternative theories of g
 ravity and by exotic forms of dark energy. I will discuss theoretical issu
 es involved in finding an optimal framework to study deviations from GR on
  cosmological scales with focus on model-independend approaches. I will co
 nclude with analysis of the Chameleon screening mechanisms around spheroid
 al sources and in dynamical configurations.\n
LOCATION:CMS\, Pav.B\, CTC Common Room (B1.19)
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