Searching for TeV Blazar Candidates in the Sloan Digital Sky Survey

Details Searching for TeV Blazar Candidates in the Sloan Digital Sky Survey Searching for TeV Blazar Candidates in the Sloan Digital Sky Survey

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.0810b&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #08.10; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

Telescopes dedicated to discovering sources emitting TeV gamma-rays are now in operation in both northern and southern hemispheres. We expect that these telescopes will detect > 50 extragalactic TeV sources. Many of these will be blazars, and to date 11 blazars have been detected. The goal of our study is to assemble a list of highly-probable TeV emitting blazars drawn from objects previously observed by the Sloan Digital Sky Survey (SDSS) and archived in Data Release 5. Our search combines ideas described in a variety of published efforts to identify TeV blazars from measured radio-optical-xray fluxes, as well as efforts to clearly identify blazars and weak line active galactic nuclei among objects observed by SDSS showing nearly featureless spectra. Criteria for identification include 1) redshifts < 0.7; 2) large x-ray flux; 3) large radio flux; 4) large optical color-indices; 5) low proper motion; and 6) clear signs of large amplitude variability. In this paper, we present characteristics of this TeV-probable population.
We gratefully acknowledge support for this research from the Adler Planetarium, the Brinson Foundation, and the Kentucky Space Grant Consortium.

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