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Department of Physics

Staff profile

Publication details for Prof Richard Bower

Bower, R. G., Benson, A. J. Lacey, C. G. , Baugh, C. M. , Cole, S. & Frenk, C. S. (2001). The impact of galaxy formation on the X-ray evolution of clusters. Monthly Notices of the Royal Astronomical Society 325(2): 497-508.

Author(s) from Durham

Abstract

We present a new model for the X-ray properties of the intracluster medium that explicitly includes heating of the gas by the energy released during the evolution of cluster galaxies. We calculate the evolution of clusters by combining the semi-analytic model of galaxy formation of Cole et al. with a simple model for the radial profile of the intracluster gas. We focus on the cluster X-ray luminosity function and on the relation between X-ray temperature and luminosity (the T–L relation). Observations of these properties are known to disagree with predictions based on scaling relations that neglect gas cooling and heating processes. We show that cooling alone is not enough to account for the flatness of the observed T–L relation or for the lack of strong redshift evolution in the observed X-ray luminosity function. Gas heating, on the other hand, can solve these two problems: in the Λ cold dark matter cosmology, our model reproduces fairly well the T–L relation and the X-ray luminosity function. Furthermore, it predicts only weak evolution in these two properties out to z=0.5, in agreement with recent observational data. A successful model requires an energy input of 1–2×1049 erg per solar mass of stars formed. This is comparable to the total energy released by the supernovae associated with the formation of the cluster galaxies. Thus, unless the transfer of supernovae energy to the intracluster gas is very (perhaps unrealistically) efficient, additional sources of energy, such as mechanical energy from active galactic nuclei winds are required. However, the amplification of an initial energy input by the response of the intracluster medium to protocluster mergers might ease the energy requirements. Our model makes definite predictions for the X-ray properties of groups and clusters at high redshift. Some of these, such as the T–L relation at z1, may soon be tested with data from the Chandra and Newton satellites.

References

Allen S., Fabian A. C., 1998, MNRAS, 297, L57
Arnuad M., Evrard E., 1999, MNRAS, 305, 631
Balogh M. L., Babul A., Patton D. R., 1999, MNRAS, 307, 463
Balogh M. L., Pearce F., Bower R. G., Kay S., 2001, MNRAS, in press
(astro-ph/0104041)
Baugh C. M., Cole S., Frenk C. S., Lacey C. G., 1998, ApJ, 498, 504
Benson A. J., Bower R. G., Frenk C. S., White S. D. M., 2000, MNRAS,
314, 557
Bertschinger E., 1989, ApJ, 340, 666
Bower R. G., 1997, MNRAS, 288, 355
Bryan G., 2000, ApJ, 544, 1
Burg R., Cavaliere A., Menci N., 1993, ApJ, 404, L55
Cavaliere A., Fusco-Femiano R., 1976, A&A, 49, 137
Cavaliere A., Giacconi R., Menci N., 2000, ApJ, 528, 77
Chiosi C., Bertelli G., Bressan A., 1992, ARA&A, 30, 235
Cole S., 1991, ApJ, 367, 45
Cole S., Lacey C. G., Baugh C. M., Frenk C. S., 2000, MNRAS, 319, 168
David L. P., Slyz A., Jones C., Forman W., Vrtilek S. D., Arnaud K. A.,
1993, ApJ, 412, 479
Ebeling H., Edge A. C., Fabian A. C., Allen S. W., Crawford C. S.,
Boehringer H., 1997, ApJ, L479, 101
Efstathiou G., Bond J. R., White S. D. M., 1992, MNRAS, 258, 1
Eisenstein D. J., Zaldarriaga M., 2001, ApJ, 546, 2
Eke V. R., Cole S., Frenk C. S., 1996, MNRAS, 282, 263
Eke V. R., Cole S., Frenk C. S., Henry J. P., 1998, MNRAS, 298, 1145
Eke V. R., Navarro J. F., Frenk C. S., 1998, ApJ, 503, 569
Evrard A. E., Henry J. P., 1991, ApJ, 383, 95
Fairley B. W., Jones L. R., Scharf C., Ebeling H., Perlman E., Horner D.,
Wegner G., Malkan M., 2000, MNRAS, 315, 669
Frenk C. S. et al., 1999, ApJ, 525, 554
Gioia I. M., Henry J. P., Maccacaro T., Morris S. L., Stocke J. T.,Wolter A.,
1990, ApJ, 356, L35
Helsdon S. F., Ponman T. J., 2000, MNRAS, 315, 356
Henry J. P., Gioia I. M., Maccacaro T., Morris S. L., Stocke J. T.,Wolter A.,
1992, ApJ, 386, 408
Hoyle F., Baugh C. M., Shanks T., Ratcliffe A., 1999, MNRAS, 309, 659
Jones L. R., Ebeling H., Scharf C., Perlman E., Horner D., Fairley B.,
Wegner G., Malkan M., 2000, astro-ph/0001376
Kaiser N., 1986, MNRAS, 222, 323
Kaiser N., 1991, ApJ, 383, 104
Kauffmann G., White S. D. M., Guiderdoni B., 1993, MNRAS, 264, 201
Kay S. T., Bower R. G., 1999, MNRAS, 308, 664
Kennicutt R. C., 1983, ApJ, 498, 541
Knight P. A., Ponman T. J., 1997, MNRAS, 289, 955
Kravtsov A. V., Yepes G., 2000, MNRAS, 318, 227
Lloyd-Davies E. J., Ponman T. J., Cannon D. B., 2000, MNRAS, 315, 689
Lufkin E. A., Sarazin C. L., White R. E., 2000, ApJ, 542, 94
Magorrian J. et al., 1998, AJ, 115, 2285
Markevitch M., 1998, ApJ, 504, 27
Mulchaey J. S., Zabludoff A. I., 1998, ApJ, 496, 73
Mushotzky R. F., Scharf C. A., 1997, ApJ, 482, L13
Navarro J. F., Frenk C. S., White S. D. M., 1995, MNRAS, 275, 720
Navarro J. F., Frenk C. S., White S. D. M., 1997, ApJ, 490, 493, (NFW)
Nichol R. C. et al., 1999, ApJ, 521, L21
Nulsen P. E. J., Fabian A. C., 2000, MNRAS, 311, 346
Peacock J. A., 1996, EADN School ‘The Structure of the Universe’, Leiden,
astro-ph/9601135
Peacock J. A., Dodds S. J., 1994, MNRAS, 267, 1020
Pearce F. R., Thomas P. A., Couchman H. M. P., Edge A. C., 2000,
MNRAS, 317, 1029
Ponman T. J., Bourner P. D. J., Ebeling H., Bohringer H., 1996, MNRAS,
283, 690
Ponman T. J., Cannon D. B., Navarro J. F., 1999, Nat, 397, 135.
Rees M. J., 1984, ARA&A, 22, 471
Renzini A., 1997, ApJ, 488, 35
Rosati P., Ceca R. D., Norman C., Giacconi R., 1998, ApJ, 492, L21
Scharf C. A., Jones L. R., Ebeling H., Perlman E., Malkan M., Wegner G.,
1997, ApJ, 477, 79
Somerville R. S., Primack J. R., 1999, MNRAS, 310, 1087
Suginohara T., Ostriker J. P., 1998, ApJ, 507, 16
Theuns T., Schaye J., Haehnelt M. G., 2000, MNRAS, 315, 600
Thornton K., Gaudlitz M., Janka H. T., Steinmetz M., 1998, ApJ, 500, 95
Tozzi P., Norman C., 2001, ApJ, 546, 63
Valageas P., Silk J., 1999, A&A, 350, 725
Vikhlinin A., McNamara B. R., Forman W., Jones C., Quintana H.,
Hornstrup A., 1998, ApJ, 502, 558
White S. D. M., Rees M. J., 1978, MNRAS, 183, 341
White S. D. M., Frenk C. S., 1991, ApJ, 379, 52
Woosley S. E., Weaver T. A., 1986, ARA&A, 24, 205
Wu K. K. S., Fabian A. C., Nulsen P. J., 1998, MNRAS, 301, L20
Wu K. K. S., Fabian A. C., Nulsen P. J., 2000, MNRAS, 318, 889
Wu K. K. S., Fabian A. C., Nulsen P. J., 2001, MNRAS, 324, 95.