Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-01-07
Astronomy and Astrophysics
Astrophysics
15 pages, 4 figures, one of which is a separate JPEG plate. To be published in the April 1998 issue of The Astronomical Journa
Scientific paper
10.1086/300298
We present the results of longslit and multiaperture spectroscopy of faint galaxies in the field of the z=1.049 quasar 3C212. We show that an apparently aligned optical feature beyond the NW radio lobe has a redshift z=0.928, and a similarly aligned feature just beyond the SE radio lobe has a redshift z=1.053, quite close to that of the quasar. While the NW optical component is extremely well aligned with the radio jet and has a morphology that is very similar to that of the radio lobe lying 3" interior to it, the fact that we find three other field galaxies with closely similar redshifts indicates that it is most likely a member of an intervening group rather than an unusual example of true alignment with the radio structure. In addition, we have found two galaxies (besides the one near the SE radio lobe) having redshifts close to that of 3C212. We have firm or probable redshifts for 66 out of 82 galaxies we have observed in this field. Comparison with the redshift distribution of faint field galaxies indicates that a large fraction of the remaining 16 galaxies are likely to be at redshifts >1.4. There are at least two low-redshift dwarf starburst galaxies showing low metal abundance and high ionization in our sample; such galaxies are likely to be relatively common in very faint samples, and, under certain conditions, they could be confused with high-redshift objects.
Ridgway Susan E.
Stockton Alan
No associations
LandOfFree
Deep Spectroscopy in the Field of 3C 212 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Deep Spectroscopy in the Field of 3C 212, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Deep Spectroscopy in the Field of 3C 212 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-535983