Journal
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
Volume 172, Issue 1, Pages 383-395Publisher
IOP PUBLISHING LTD
DOI: 10.1086/516578
Keywords
galaxies : active; quasars : general; surveys
Categories
Ask authors/readers for more resources
We present spectroscopic redshifts for the first 466 X-ray-and radio-selected AGN targets in the 2 deg(2) COSMOS field. Spectra were obtained with the IMACS instrument on the Magellan (Baade) telescope, using the nod-and-shuffle technique. We identify a variety of type 1 and type 2 AGNs, as well as red galaxies with no emission lines. Our red-shift yield is 72% down to i(AB) 24, although the yield is > 90% for iAB < 22. We expect the completeness to increase as the survey continues. When our survey is complete and additional redshifts from the zCOSMOS project are included, we anticipate similar to 1100 AGNs with redshifts over the entire COSMOS field. Our redshift survey is consistent with an obscured AGN population that peaks at z similar to 0: 7, although further work is necessary to disentangle the selection effects.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available