Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-12T11:53:34.333Z Has data issue: false hasContentIssue false
  • English
  • Français

The Impact of Cooling Flows in Clusters of Galaxies

Published online by Cambridge University Press:  25 May 2016

S. W. Allen
S. W. Allen*
Affiliation:
Institute of Astronomy, Madingley Road, Cambridge CBS OHA, U.K.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

I discuss the impact of cooling flows on the observable X-ray properties of clusters of galaxies. I show that accounting for the effects of cooling flows and subcluster merger events leads to consistent determinations of the distribution of gravitating matter in clusters from X-ray and gravitational lensing studies. Accounting for the effects of cooling flows significantly reduces the scatter in the LBol/TX relation determined for the hottest, most luminous systems and changes the best-fitting slope of the relation to a value close to LBol ∝ T2X, in agreement with theoretical models. A clear segregation between the mean metallicities of cooling-flow and non-cooling-flow clusters is observed, which can be explained by the presence of metallicity gradients in the cooling-flow systems.

Type
Part I: Talks
Information
Symposium - International Astronomical Union , Volume 195: Highly Energetic Physical Processes and Mechanisms , 2000 , pp. 199 - 206
Copyright
Copyright © Astronomical Society of the Pacific 2000 

References

Allen, S. W. 1998, MNRAS, 296, 392.Google Scholar
Allen, S. W. 2000, MNRAS, submitted.Google Scholar
Allen, S. W., & Fabian, A. C. 1997, MNRAS, 286, 583.Google Scholar
Allen, S. W., & Fabian, A. C. 1998a, MNRAS, 297, L57.Google Scholar
Allen, S. W., & Fabian, A. C. 1998b, MNRAS, 297, L63.CrossRefGoogle Scholar
Akritas, M. G., & Bershady, M. A. 1996, ApJ, 470, 706.Google Scholar
Arnaud, M., Rothenflug, R., Boulade, O., Vigroux, L., & Angina-Flam, E. 1992, A&A, 254, 49.Google Scholar
Cavaliere, A., Menci, N., & Tozzi, P. 1997, ApJ, 484, L21.CrossRefGoogle Scholar
David, L. P., Jones, C., & Forman, W. 1995, ApJ, 445, 578.CrossRefGoogle Scholar
David, L. P., Slyz, A., Jones, C., Forman, W., Vrtilek, S. D., & Arnaud, K. A. 1993, ApJ, 412, 479.Google Scholar
Edge, A. C., & Stewart, A. C. 1991, MNRAS, 252, 414.Google Scholar
Edge, A. C., Stewart, G. C., & Fabian, A. C. 1992, MNRAS, 255, 431.Google Scholar
Evrard, A. E., & Henry, J. P. 1991, ApJ, 383, 95.Google Scholar
Ezawa, H., Fukazawa, Y., Makishima, K., Ohashi, T., Takahara, F., Xu, H., & Yamasaki, N. Y. 1997, ApJ, 490, L33.CrossRefGoogle Scholar
Fabian, A. C. 1994, ARAA, 32, 277.Google Scholar
Fabian, A. C., Crawford, C. S., Edge, A. C., & Mushotzky, R. F. 1994, MNRAS, 267, 779.CrossRefGoogle Scholar
Feigelson, E. D., & Babu, G. J. 1992, ApJ, 397, 55.Google Scholar
Fukazawa, Y., Ohashi, T., Fabian, A. C., Canizares, C. R., Ikebe, Y., Makishima, K., Mushotzky, R. F., Yamashita, K. 1994, PASJ, 46, L55.Google Scholar
Kaiser, N. 1991, ApJ, 383, 104.CrossRefGoogle Scholar
Kauffmann, G., & Charlot, S. 1998, MNRAS, 294, 705.Google Scholar
Markevitch, M. 1998, ApJ, 504, 27.CrossRefGoogle Scholar
Matsumoto, H., Koyama, K., Awaki, H., Tomida, H., Tsuru, T., Mushotzky, R., & Hatsukade, I. 1996, PASJ, 48, 201.CrossRefGoogle Scholar
Matsuzawa, H., Matsuoka, M., Ikebe, Y., Mihara, T., & Yamashita, K. 1996, PASJ, 48, 565.Google Scholar
Mushotzky, R. F., & Lowenstein, M. 1997, ApJ, 481, L63.Google Scholar
Peres, C. B., Fabian, A. C., Edge, A. C., Allen, S. W., Johnston, R. M., & White, D. A. 1998, MNRAS, 298, 416.Google Scholar
Roettiger, K., Burns, J. O., & Loken, C. 1996, ApJ, 473, 651.Google Scholar
Scharf, C. A., & Mushotzky, R. F. 1997, ApJ, 485, L65.CrossRefGoogle Scholar
Tamura, T., et al. 1996, PASJ, 48, 671.Google Scholar
Watanabe, M., Yamashita, K., Kunieda, H., & Tawara, Y. 1997, in X-ray Imaging and Spectroscopy of Cosmic Hot Plasmas, eds. Makino, F. & Mitsuda, K., (Tokyo: Universal Academy Press), 131.Google Scholar