Cosmo-26

EFTofLSS and Newtonian Motion gauges

Not scheduled

20m

Gorlaeus gebouw (Leiden University)

Talk Large-Scale Structure

Speaker

Julien Lesgourgues (RWTH Aachen university)

Description

Using appropriate gauge transformations, one can extend the range of validity of standard perturbation theory or of the EFTofLSS. We show how to use Newtonian Motion gauges to compute accurately the one-loop matter power spectrum in redshift space taking into general relativistic effects, gravitational coupling with radiation, the scale-dependent growth induced by massive neutrinos and the impact dark energy domination. This method does not incur any additional computational cost.