A Spectroscopic Survey of AGN in COSMOS

Details A Spectroscopic Survey of AGN in COSMOS A Spectroscopic Survey of AGN in COSMOS

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.6204t&link_type=abstract

American Astronomical Society Meeting 207, #62.04; Bulletin of the American Astronomical Society, Vol. 37, p.1244

Astronomy and Astrophysics

Astronomy

Scientific paper

We describe a spectroscopic survey of AGN in the 2 deg2 COSMOS field. The size, depth, and extensive multi-wavelength observations of the survey allow for bolometric studies of AGN in a wide variety of environments. Here we present the spectroscopic redshifts for the first ˜500 X-ray and radio-selected AGN targets. Spectra were obtained with the Magellan (Baade) IMACS instrument, using the nod-and-shuffle technique. We identify a variety of Type 1 and Type 2 AGN, as well as red galaxies with no emission lines. Our redshift yield is 72% down to i AB=24, but we expect the yield to increase as the survey continues. When our survey is complete and additional redshifts from the ESO VLT are included, we expect ˜ 1100 AGN with redshifts over the entire COSMOS field.

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