Other
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21832725h&link_type=abstract
American Astronomical Society, AAS Meeting #218, #327.25; Bulletin of the American Astronomical Society, Vol. 43, 2011
Other
Scientific paper
We acquired optical spectra of ten newly discovered Swift BAT AGN for the first time and determined redshifts, optical properties, and classifications for each galaxy. The sources were detected in the 55-month survey in the hard X-ray regime of 14-195 keV. The BAT sample provides an unbiased look at AGN because at these wavelengths dust and gas obscuration does not prevent their detection. The optical follow-ups were done on the 3.5-meter Apache Point Observatory in New Mexico using the lower dispersion DIS gratings, which provides a large wavelength coverage. As the Swift survey continues, it probes to fainter and more distant objects. For the new AGN in the catalog, we present an analysis of the optical and X-ray spectroscopy. Optical spectroscopy of these new targets, discovered as AGN for the first time through their hard X-ray flux, are more distant than the average Swift source with a redshift range of z= 0.02 to 0.15 and an average redshift in the sample of z= 0.07. Half (5 sources) of our sample exhibit broad lines in their optical spectra, which is characteristic of Seyfert 1 galaxies, while the other half have narrow emission lines which are characteristic of Seyfert 2 galaxies. Additionally, we analyzed the X-ray spectra and created SEDs for these sources.
Baumgartner Wayne
Hogg James
Tueller Jack
Winter Lisa M.
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