Distinguishing
Modified Gravity(MG) from smooth Dark
Energy(sDE) models
by reconstructed
gravitational slip parameter in palatini
formalism
Shant Baghram
(Sharif Univ. of Tech.)
Abstract:
In this talk, we consider the
structure formation in modified gravity
theories in Palatini formalism.
using the inverse method, we
reconstructed the dynamics of universe,
modified gravity action and matter
density of universe
by SNAP simulated supernova data. In the
next step we found out the the
gravitational slip parameter as a
function of wavenumber and redshift and
used its effect on ISW as a cosmological
probe to distinguish between DE and MG
models.
Wednesday /
27-January-2010 / 7-Bahman-1388/ 2:00 PM
IPM Larak Building,
School of Astronomy
Address: Larak Garden,
opposite Araj, Artesh
Highway,Tehran, Iran
E-mail: astro(at)
ipm.ir
