PIRSA:25070026

Constraining cluster and group ecosystems with joint and consistent SZ and x-ray observations

Farren, G. (2025). Constraining cluster and group ecosystems with joint and consistent SZ and x-ray observations. Perimeter Institute. https://pirsa.org/25070026

Farren, Gerrit. Constraining cluster and group ecosystems with joint and consistent SZ and x-ray observations. Perimeter Institute, Jul. 29, 2025, https://pirsa.org/25070026 

          @misc{ pirsa_PIRSA:25070026,
            doi = {10.48660/25070026},
            url = {https://pirsa.org/25070026},
            author = {Farren, Gerrit},
            keywords = {Cosmology},
            language = {en},
            title = {Constraining cluster and group ecosystems with joint and consistent SZ and x-ray observations},
            publisher = {Perimeter Institute},
            year = {2025},
            month = {jul},
            note = {PIRSA:25070026 see, \url{https://pirsa.org}}
          }

Gerrit Farren Lawrence Berkeley National Laboratory

Talk numberPIRSA:25070026
DOI10.48660/25070026
Collection
Talk Type Conference
Subject

Abstract

I will present work on measuring thermal and kinetic Sunyaev-Zeldovich signals alongside x-ray fluxes from clusters and groups of galaxies identified either in the DESI Legacy Survey or selected from eROISTA x-ray observations. I will show joint inference of matter and gas density as well as temperature and x-ray emissivity to better understand the structure within these objects and the feedback processes which are relevant to the modelling of cosmological observables. Among other aspects, I will address claims of discrepancy between the feedback observed in x-ray cross-correlations with cosmic shear and inferred from kSZ observations.