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Revisiting the cosmic cooling crisis

Balogh, M.L.; Pearce, F.R.; Bower, R.G.; Kay, S.T.

Authors

M.L. Balogh

F.R. Pearce

R.G. Bower

S.T. Kay



Abstract

Recent measurements of the K-band luminosity function now provide us with strong, reliable constraints on the fraction of baryons which have cooled. Globally, this fraction is only about 5 per cent, and there is no strong evidence that it is significantly higher in clusters. Without an effective subgrid feedback prescription, the cooled gas fraction in any numerical simulation exceeds these observational constraints, and increases with increasing resolution. This compromises any discussion of galaxy and cluster properties based on results of simulations which include cooling but do not implement an effective feedback mechanism.

Citation

Balogh, M., Pearce, F., Bower, R., & Kay, S. (2001). Revisiting the cosmic cooling crisis. Monthly Notices of the Royal Astronomical Society, 326(4), 1228-1234. https://doi.org/10.1111/j.1365-2966.2001.04667.x

Journal Article Type Article
Publication Date 2001-10
Deposit Date May 12, 2008
Publicly Available Date Mar 28, 2024
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Electronic ISSN 1365-2966
Publisher Royal Astronomical Society
Peer Reviewed Peer Reviewed
Volume 326
Issue 4
Pages 1228-1234
DOI https://doi.org/10.1111/j.1365-2966.2001.04667.x
Keywords Methods, Numerical, Cooling flows, Galaxies, Hierarchical Galaxy formation, X-ray clusters, Luminosity, Star formation, Mass function, Numerical resolution, Intergalactic medium, Baryon content, Brown dwarfs.

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