The Interstellar and Circumgalactic Media at low and high redshift as traced by Atomic Carbon and Carbon Monoxide
1 European Southern Observatory, Garching, Germany
2 Max-Planck for Astrophysics, Garching, Germany
3 Department of Physics, Aristotle University of Thessaloniki
4 Physikalisches Institut, Universität zu Köln, Köln, Germany
5 National Radio Astronomy Observatory, Charlotteville, VA, USA
6 School of Astronomy and Space Science, Nanjing University, Nanjing, China
7 Fukui University of Technology, Fukui, Japan
8 Department of Physics & Astronomy, University of British Columbia, Canada
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Published online: 7 September 2022
A different chemistry of the interstellar medium (ISM) is expected in the circumgalactic medium (CGM) gas where high-energetic particles (i.e. cosmic rays) seem to be produced in-situ by the hot X-ray gas, as it is observed in the Perseus cluster. This very different astrochemistry, where extreme gas-dust thermal decoupling is expected, and where CO can be destroyed over large massscales, is the subject of the investigation briefly reported here. We introduce an on-going project aiming at studying the properties of the CGM of two clusters at low and high redshift using their molecular gas tracers and thermal emission from dust.
© The Authors, Published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).