Faint galaxies around quasars at z=1 and gravitational lensing of distant objects
| dc.creator | Fried, J. W. | |
| dc.date | 1996-12-03 | |
| dc.date.accessioned | 2026-07-07T02:22:26Z | |
| dc.date.available | 2026-07-07T02:22:26Z | |
| dc.description | Very deep imaging data of three optically luminous radio-loud quasars with redshifts between z=0.9 and z=1.36 are presented. The data are complete for galaxies down to R=26. There is no evidence for excess numbers of galaxies around the quasars; foreground galaxy clusters are excluded by the data as well as clusters with richness classes greater than 1 associated with the quasars. We find clear evidence for gravitational lensing for two quasars. It is further shown that due to the high surface density of galaxies all distant (z>1) objects are moderately affected by gravitational lensing; the amplification factors are estimated to be in the range 1.1-1.5. | |
| dc.description | 16 pages, 5 postscript figures, accepted by A&A, main journal | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9612031 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9612031 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/10877 | |
| dc.subject | Astrophysics | |
| dc.title | Faint galaxies around quasars at z=1 and gravitational lensing of distant objects | |
| dc.type | text |