Extremely red radio galaxies
| dc.creator | Willott, Chris J. | |
| dc.creator | Rawlings, Steve | |
| dc.creator | Blundell, Katherine M. | |
| dc.date | 2001-04-06 | |
| dc.date.accessioned | 2026-07-07T01:58:09Z | |
| dc.date.available | 2026-07-07T01:58:09Z | |
| dc.description | 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. | |
| dc.description | 6 pages, 2 figures, to appear in the proceedings of the workshop on "QSO hosts and their environments", IAA, Granada, 10-12 Jan 2001, Ed. I. Marquez | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0104118 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0104118 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/2663 | |
| dc.subject | Astrophysics | |
| dc.title | Extremely red radio galaxies | |
| dc.type | text |