Abstract Details

Name: Ashish
Affiliation: Physical Research Laboratory, Ahmedabad
Conference ID: ASI2017_1323
Title : SZ Effect in Galaxy Clusters as Probe of Dark Matter
Authors and Co-Authors : Dr. Subhendra Mohanty, PRL Ahmedabad.
Abstract Type : Poster
Abstract Category : General Relativity and Cosmology
Abstract : The abundance and structure of galaxy clusters are powerful probes of cosmology. One of the ways to study galaxy clusters is through Sunyaev-Zel'Dovich (SZ) effect which is the spectral distortion of cosmic microwave background (CMB) caused by the inverse compton scattering of the CMB photons by the high energy electrons present in the Intra-Cluster Medium (ICM). In this on-going work we describe a method to study the effect of the presence of dark matter on the cluster parameters such as temperature, cluster peculiar velocity and cluster mass using the SZ effect combined with X-ray estimates. We also show that due to its red-shift independence, the SZ effect can be used to discover galaxy clusters. The above effect occurs in the sub-mm range of the electromagnetic spectrum and can be observed using presently available telescopes as ACT(Chile), SPT and Planck spacecraft and also using the future experiments like OLIMPO and proposed Indian Sub-mm telescope.