Speaker
Guandi Zhao
(ETH Zurich)
Description
We investigate the cross-correlation between the thermal Sunyaev-Zel'dovich (tSZ) signal from the ACT DR6 Compton-y maps and galaxies from selected low- and mid-redshift samples based on the unWISE catalog. The low-z and mid-z samples are centered at $z \sim 0.1$ and $z \sim 0.3$, respectively. By comparing them, we aim to constrain the evolution of galaxy pressure profiles and investigate possible central pressure deficits indicated by a suppression of small-scale power. The results will inform future modeling of feedback processes.
Authors
Alex Krolewski
(University of Waterloo)
Guandi Zhao
(ETH Zurich)
Niayesh Afshordi
(University of Waterloo)