Faint Quasar Surveys
| dc.creator | Hall, Patrick B. | |
| dc.date | 2000-10-25 | |
| dc.date.accessioned | 2026-07-07T01:56:12Z | |
| dc.date.available | 2026-07-07T01:56:12Z | |
| dc.description | Faint quasar surveys are necessary complements to bright quasar surveys to remove the degeneracy between redshift and luminosity inherent in any single magnitude-limited sample. I discuss two ongoing surveys for faint quasars at 3.3<z<5 and 5<z<6 using imaging data from the Big Throughput Camera on the CTIO 4m. I also discuss a sample of faint spectroscopically selected AGN with z<4.7 found serendipitously in the CNOC2 Field Galaxy Redshift Survey. Faint quasars at 2<z<3.5 from this sample, when combined with literature data on more luminous quasars at the same redshift, show evidence for a much weaker Baldwin Effect in CIV 1549 and Ly-alpha than previously seen at z<1.5. This may imply that the slopes of the Baldwin Effect for these transitions evolve with redshift, steepening with cosmic time. Finally I discuss the prospects for extending faint quasar surveys to z~7 using near-IR followup of very red objects in the Red-Sequence Cluster Survey. | |
| dc.description | 6 pages; to appear in The New Era of Wide-Field Astronomy, ed. R. G. Clowes, A. J. Adamson, G. E. Bromage | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0010501 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0010501 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/1914 | |
| dc.subject | Astrophysics | |
| dc.title | Faint Quasar Surveys | |
| dc.type | text |