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arxiv: 2111.01446 · v1 · pith:7OIHXQIRnew · submitted 2021-11-02 · 🌌 astro-ph.CO

Mapping the intracluster medium temperature in the era of NIKA2 and MUSTANG-2

F. Ruppin , R. Adam , P. Ade , H. Ajeddig , P. Andr\'e , E. Artis , H. Aussel , A. Beelen
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A. Beno\^it S. Berta L. Bing O. Bourrion M. Brodwin M. Calvo A. Catalano B. Decker M. De Petris F.-X. D\'esert S. Doyle E. F. C. Driessen P. R. M. Eisenhardt A. Gomez A. H. Gonzalez J. Goupy F. K\'eruzor\'e C. Kramer B. Ladjelate G. Lagache S. Leclercq J.-F. Lestrade J.-F. Mac\'ias-P\'erez A. Maury P. Mauskopf F. Mayet M. McDonald A. Monfardini E. Moravec M. Mu\~noz-Echeverr\'ia L. Perotto G. Pisano N. Ponthieu V. Rev\'eret A. J. Rigby A. Ritacco C. Romero H. Roussel K. Schuster S. Shu A. Sievers S. A. Stanford D. Stern C. Tucker R. Zylka
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keywords highmappingnika2temperatureaimsangulargalaxyintracluster
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We present preliminary results from an on-going program that aims at mapping the intracluster medium (ICM) temperature of high redshift galaxy clusters from the MaDCoWS sample using a joint analysis of shallow X-ray data obtained by $Chandra$ and high angular resolution Sunyaev-Zel'dovich (SZ) observations realized with the NIKA2 and MUSTANG-2 cameras. We also present preliminary results from an on-going Open Time program within the NIKA2 collaboration that aims at mapping the ICM temperature of a galaxy cluster at $z=0.45$ from the resolved detection of the relativistic corrections to the SZ spectrum. These studies demonstrate how high angular resolution SZ observations will play a major role in the coming decade to push the investigation of ICM dynamics and non-gravitational processes to high redshift before the next generation X-ray observatories come into play.

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