VERITAS Extragalactic Highlights

Details VERITAS Extragalactic Highlights VERITAS Extragalactic Highlights

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011head...12.0722e&link_type=abstract

American Astronomical Society, HEAD meeting #12, #7.22

Astronomy and Astrophysics

Astronomy

Scientific paper

The VERITAS array of 12-m atmospheric-Cherenkov telescopes in southern Arizona is one of the world's most-sensitive detectors of VHE (E>100 GeV) gamma rays. There are 47 extragalactic sources known to emit VHE photons; including blazars, radio galaxies, and starburst galaxies. Blazar observations are one of the VERITAS Collaboration's Key Science Projects. More than 400 hours per year are devoted to this program and 100 blazars have already been observed with the array, in most cases with the deepest-ever VHE exposure. These observations have resulted in 20 detections, including 10 VHE discoveries, all of them with supporting multiwavelength observations. The VERITAS extragalactic program also includes deep observations of the radio galaxy M 87 and the discovery of M 82, the first starburst galaxy detected in the VHE gamma ray band. Recent highlights from VERITAS extragalactic observation program and the collaboration's long-term blazar observation strategy will be presented.

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