Hidden Cooling Flows in Clusters of Galaxies II: A Wider Sample

Autor:	A C Fabian, J S Sanders, G J Ferland, B R McNamara, C Pinto, S A Walker
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	High Energy Astrophysical Phenomena (astro-ph.HE) Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) FOS: Physical sciences Astronomy and Astrophysics Astrophysics - High Energy Astrophysical Phenomena Astrophysics - Astrophysics of Galaxies
Popis:	We have recently uncovered Hidden Cooling Flows (HCFs) in the XMM RGS spectra of 3 clusters of galaxies, Centaurus, Perseus and A1835. Here we search for them in a wider sample of objects: the X-ray brightest group NGC5044; 4 moderate X-ray luminosity clusters Sersic 159, A262, A2052 and RXJ0821; and 3 high X-ray luminosity clusters RXJ1532, MACS 1931 and the Phoenix cluster. Finally we examine two Virgo elliptical galaxies, M49 and M84. All statistically allow the addition of an HCF. We find a significant detection of an HCF in 6 clusters and 2 elliptical galaxies. The hidden mass cooling rates are 5 to 40 Solar masses per year for the normal clusters, 1000 Solar masses per year or more for the extreme clusters and 1 to 2 Solar masses per year for the elliptical galaxies. We discuss the implications of the results for the composition of the innermost parts of the massive host galaxies and look forward to future observations. 10 Pages, 13 figures, 3 tables, MNRAS submitted
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66f84279e10038ec7ee3685a2cfcb7b1 http://arxiv.org/abs/2211.13971 Zobrazit plný text záznamu