| Issue |
EPJ Web Conf.
Volume 293, 2024
mm Universe 2023 - Observing the Universe at mm Wavelengths
|
|
|---|---|---|
| Article Number | 00017 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/epjconf/202429300017 | |
| Published online | 28 March 2024 | |
https://doi.org/10.1051/epjconf/202429300017
Current results and future prospectives on the XMM–Newton Heritage project CHEX-MATE, and on the non-thermal pressure in galaxy clusters
1 INAF, Osservatorio di Astrofisica e Scienza dello Spazio, via Piero Gobetti 93/3, 40129 Bologna, Italy
2 INFN, Sezione di Bologna, viale Berti Pichat 6/2, 40127 Bologna, Italy
* e-mail: stefano.ettori@inaf.it
Published online: 28 March 2024
The Cluster HEritage project with XMM-Newton – Mass Assembly and Thermodynamics at the Endpoint of structure formation (CHEX-MATE) is a Multi-Year Heritage Programme to obtain X-ray observations of a minimally-biased, signal-to-noise-limited sample of galaxy clusters detected by Planck through the Sunyaev–Zeldovich effect. The program aims to study the ultimate products of structure formation in time and mass. On behalf of our large international collaboration, I will summarize the most recent results obtained, highlighting the role of multi-band datasets in resolving the astrophysics of the most massive collapsed halos in the universe and in studying the interplay between hot plasma and dark matter. I will also present some new methods for estimating the non-thermal pressure support in galaxy clusters, and how we can convert it into a measurement of the hydrostatic mass bias, also for a cosmological purpose. These studies will pave the way for using the next generation of X-ray observatories to construct a consistent picture of the formation and composition in mass and energy of galaxy clusters.
© The Authors, published by EDP Sciences, 2024
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