Abstract
At least half the radio galaxies at z > 1 in the 7C Redshift Survey have extremely red colours (R — K > 5), consistent with stellar populations which formed at high redshift (z ≳ 5). We discuss the implications of this for the evolution of massive galaxies in general and for the fraction of near-IR-selected EROs which host AGN, a result which is now being tested by deep, hard X-ray surveys. The conclusion is that many massive galaxies undergo at least two active phases: one at z ~ 5 when the black hole and stellar bulge formed and another at z ~ 1 — 2 when activity is triggered by an event such as an interaction or merger.
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References
Best P. N., Longair M. S., Röttgering H. J. A., 1998, MNRAS, 295, 549
Chambers K. C., McCarthy P. J., 1990, ApJL, 354, L9
Comastri A., Setti G., Zamorani G., Hasinger G., 1995, A&A, 296, 1
Cowie L. L. et al., 2001, ApJL, in press, astro-ph/0102306
Crawford C. S., Fabian A. C., Gandhi P., Wilman R. J., Johnstone R. M., 2001, MNRAS, submitted, astro-ph/0005242
Daddi E. et al., 2000, A&A, 361, 535
di Serego Alighieri S., Fosbury R. A. E., Tadhunter C. N., Quinn P. J., 1989, Nature, 341, 307
Dunlop J. S., 1999, in The Most Distant Radio Galaxies, ed. P. N. Best, H. J. A. Röttgering, M. D. Lehnert, (KNAW Colloq.; Dordrecht: Kluwer), p. 14
Hornschemeier A. E. et al., 2001, ApJ, in press, astro-ph/0101494
Lacy M., Ridgway S. E., Wold M., Lilje P. B., Rawlings S., 1999a, MNRAS, 307, 420
Lacy M. et al., 1999b, MNRAS, 308, 1096
Laing R. A., Riley J. M., Longair M. S., 1983, MNRAS, 204, 151
Lilly S. J., Longair M. S., 1984, MNRAS, 211, 833
Moriondo G., Cimatti A., Daddi E., 2001, A&A, in press, astro-ph/0010335
Nolan L. A., Dunlop J. S., Jimenez R., Heavens A. F., 2001, MNRAS, submitted, astro-ph/0103450
Rawlings S., Eales S. A., Lacy M., 2001, MNRAS, 322, 523
Stiavelli M., Treu T., 2000, To appear in the proceedings of the conference “Galaxy Disks and Disk Galaxies”, ASP Conf. series, eds. Funes and Corsini, astro-ph/0010100
Willott C. J., Rawlings S., Blundell K. M., Lacy M., Eales S. A., 2001a, MNRAS, 322, 536
Willott C. J., Rawlings S., Blundell K. M., 2001b, MNRAS, in press, astro-ph/0011082
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Willott, C.J., Rawlings, S., Blundell, K.M. (2001). Extremely Red Radio Galaxies. In: Márquez, I., Masegosa, J., del Olmo, A., Lara, L., García, E., Molina, J. (eds) QSO Hosts and Their Environments. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-0695-9_19
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DOI: https://doi.org/10.1007/978-1-4615-0695-9_19
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