Abstract
Most of the ∼ 50 blazars detected to date at TeV energies (E > 0.1 TeV) are high-frequency-peaked BL Lacs (HBLs). Only a handful episodic detections of low- and intermediate-frequency-peaked BL Lacs (LBL/IBLs, with synchrotron peak frequencies in the infrared and optical regime) have been reported by ground-based gamma-ray telescopes, typically during high-flux states. The VERITAS array located in southern Arizona has observed five known TeV LBL/IBLs since 2009: 3C 66A, WComae, PKS 1424+240, S5 0716+714 and BL Lacertae, with exposures of 5-10 hours/year, which so far resulted in the detection of a bright, sub-hour timescale gamma-ray flare of BL Lacertae in June 2011. We also report the detection and characterization of two new IBLs: VER J0521+211 and B2 1215+30.
| Original language | English |
|---|---|
| Article number | 04012 |
| Journal | EPJ Web of Conferences |
| Volume | 61 |
| DOIs | |
| State | Published - 2013 |
| Event | International Symposium on the Innermost Regions of Relativistic Jets and Their Magnetic Fields - Granada, Spain Duration: Jun 10 2013 → Jun 14 2013 |