Speaker
Diana Victoria Lopez Navarro
(Bonn University)
Description
The scattering of the CMB photons off of free electrons contained within the intracluster medium (ICM) of galaxy clusters gives rise to the Sunyaev-Zel’dovich (SZ) effect. Typically, this effect can be separated into two components: the thermal and the kinematic SZ effect. The latter arises from contributions from bulk and internal motion of the gas, including rotational motion. Recent studies have shown possible signatures of a rotation-induced kinematic SZ signal. In this work, we present a stacking analysis to investigate the rotational-kinematic SZ effect in a sample of cluster regions with reported significant rotation using data from the Atacama Cosmology Telescope (ACT).