The inner gas mass-temperature profile in the core of nearby galaxy clusters
arXiv:2007.11385 · doi:10.1093/mnras/staa2023
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 ionised atomic and the molecular phases are obtained from published H 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 . The molecular gas is located within the HU nebula which is often filamentary and coincides radially and in position angle with the soft X-ray emitting gas.
7 pages, 2 figures, accepted by MNRAS
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