Thermally Unstable Cooling Stimulated by Uplift: The Spoiler Clusters

27 May 2020 Martz C. G. McNamara B. R. Nulsen P. E. J. Vantyghem A. N. Gingras M-J. Babyk Iu. V. Russell H. R. Edge A. C. McDonald M. Tamhane P. D. Fabian A. C. Hogan M. T.

We analyzed Chandra X-ray observations of five galaxy clusters whose atmospheric cooling times, entropy parameters, and cooling time to free-fall time ratios within the central galaxies lie below 1 Gyr, below 30 keV cm^2, and between 20 < tcool/tff < 50, respectively. These thermodynamic properties are commonly associated with molecular clouds, bright H-alpha emission, and star formation in central galaxies... (read more)

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