Tunable filter imaging: structure forming around a quasar at z=0.9
| dc.creator | Baker, Joanne C. | |
| dc.date | 1997-12-11 | |
| dc.date.accessioned | 2026-07-07T02:25:34Z | |
| dc.date.available | 2026-07-07T02:25:34Z | |
| dc.description | Preliminary results are described for emission-line imaging of the field of a quasar at z=0.9 with a unique new instrument --- the TAURUS Tunable Filter (TTF). At least fourteen [O II]-emitting galaxy candidates are found within +/- 750 km/s of the quasar redshift with a significance of >3 sigma. Another eight candidates (>3 sigma) are also found with relative velocities +/- 750-1500 km/s from the quasar, indicative of a large velocity dispersion in the field. Together with the existence of a group of red galaxies in the field identified through broad-band imaging, we suggest that the TTF data are probing cluster merging which is ongoing at z=0.9. | |
| dc.description | 4 pages, 2 figures, to appear in `The Young Universe', Monte Porzio, Oct 1997, ASP | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9712152 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9712152 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/11925 | |
| dc.subject | Astrophysics | |
| dc.title | Tunable filter imaging: structure forming around a quasar at z=0.9 | |
| dc.type | text |