The inner gas mass–temperature profile in the core of nearby galaxy clusters

Author:

Liu Haonan1,Fabian Andrew C1ORCID,Pinto Ciro12ORCID

Affiliation:

1. Institute of Astronomy, Madingley Road, CB3 0HA Cambridge, UK

2. INAF-IASF Palermo, Via U. La Malfa 153, I-90146 Palermo, Italy

Abstract

ABSTRACT We present a mass–temperature profile of gas within the central 10 kpc of a small sample of cool core clusters. The mass of the hottest gas phases, at 1.5 and 0.7 keV, is determined from X-ray spectra from the XMM Reflection Grating Spectrometers. The masses of the partially ionized atomic and the molecular phases are obtained from published H α and CO measurements. We find that the mass of gas at 0.7 keV in a cluster is remarkably similar to that of the molecular gas. Assuming pressure equilibrium between the phases, this means that they occupy volumes differing by 105. The molecular gas is located within the H α nebula which is often filamentary and coincides radially and in position angle with the soft X-ray emitting gas.

Funder

ESA

NASA

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Hidden cooling flows in clusters of galaxies;Monthly Notices of the Royal Astronomical Society;2022-07-23

2. Suppressed cooling and turbulent heating in the core of X-ray luminous clusters RXCJ1504.1-0248 and Abell 1664;Monthly Notices of the Royal Astronomical Society;2021-05-19

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