Galaxies and clusters around and in front of radio sources
| dc.creator | Lacy, M. | |
| dc.date | 1998-02-11 | |
| dc.date.accessioned | 2026-07-07T02:26:03Z | |
| dc.date.available | 2026-07-07T02:26:03Z | |
| dc.description | Some recent work on radio source fields at z~0.7 and z~4 is discussed. At z~0.7 we find that radio-loud quasars are typically found in moderately rich environments independent of radio luminosity, consistent with previous results at z~0.5. In the field of the z=4.41 radio galaxy 6C0140+326 we find several candidate z>4 galaxies using the Lyman-break technique, two of which have detectable UV absorption features. In two z>4 radio galaxies, we find evidence for gravitational lensing affecting the fluxes by a few tens of percent, although we cannot rule out unusual lensing events which have larger magnifications associated with them. A simple calculation suggests lensing of z>4 radio sources should be very common. | |
| dc.description | 10 pages in LaTeX, uses knawproc.cls, 2 postscript figures. To appear in proceedings of `The most distant radio galaxies', Amsterdam, 15-17th October 1997 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9802139 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9802139 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/12117 | |
| dc.subject | Astrophysics | |
| dc.title | Galaxies and clusters around and in front of radio sources | |
| dc.type | text |