scholarly journals A New Generation of Gamma‐Ray Telescopes Prepares To Plumb the Nonthermal Universe

Physics Today ◽  
2000 ◽  
Vol 53 (6) ◽  
pp. 50-51
Author(s):  
Toni Feder
Author(s):  
S.P. Ahlen ◽  
U. Becker ◽  
P. Fisher ◽  
Yu. Galaktionov ◽  
J. Goldstein ◽  
...  
Keyword(s):  

2007 ◽  
Author(s):  
Patrizia Santolamazza ◽  
Carlotta Pittori ◽  
Francesco Verrecchia

2014 ◽  
Vol 28 ◽  
pp. 1460178
Author(s):  
◽  
HEIKE PROKOPH

The majority of blazars detected at very high energies (VHE; E > 100 GeV) are high-frequency-peaked BL Lac objects (HBLs). Low- and intermediate-frequency-peaked BL Lacs (LBLs/IBLs with synchrotron-peak frequencies in the infrared and optical regime) are generally more powerful, more luminous, and have a richer jet environment than HBLs. However, only a handful of these IBL and LBLs have been detected by ground-based gamma-ray telescopes, typically during high-flux states. The VERITAS array has been monitoring five known VHE LBLs/IBLs since 2009: 3C 66A, W Comae, PKS 1424+240, S5 0716+714 and BL Lacertae, with typical exposures of 5-10 hours per year. The results of these long-term observations are presented, including a bright, subhour-scale VHE flare of BL Lacertae in June 2011, the first low-state detections of 3C 66A and W Comae, and the detection and characterization of the IBL B2 1215+30.


2018 ◽  
Vol 21 ◽  
pp. 1-7 ◽  
Author(s):  
Ti-Lin Chou ◽  
Dimitrios Tanoglidis ◽  
Dan Hooper

1995 ◽  
pp. 235-238
Author(s):  
A. R. Green ◽  
F. Lei ◽  
A. J. Bird ◽  
I. D. Jupp ◽  
A. J. Dean

Sign in / Sign up

Export Citation Format

Share Document