Rapid TeV Gamma-Ray Variability of Active Galactic Nuclei: the Case of BL Lacertae

Details Rapid TeV Gamma-Ray Variability of Active Galactic Nuclei: the Case of BL Lacertae Rapid TeV Gamma-Ray Variability of Active Galactic Nuclei: the Case of BL Lacertae

Mar 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aps..apr.h7001c&link_type=abstract

American Physical Society, APS April Meeting 2012, March 31-Apr 3, 2012, abstract #H7.001

Physics

Scientific paper

Gamma-ray emitting active galactic nuclei (AGN) are characterized by variability on a wide range of timescales across nearly the entire electromagnetic spectrum. This is an indication of the dominant role that the jet plays in radiation production. The variability provides a valuable tool to study, in a relatively model-independent way, the emission processes and geometry as well as the energetics of the jet in AGN. Here, we present the discovery of a rapid TeV gamma-ray flare from BL Lacertae with VERITAS. It is the first low-frequency peaked BL Lac object that shows the phenomenon. We discuss the implications of the observation.

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