High energy gamma-ray emission from active galactic nuclei observed by the energetic gamma-ray experiment telescope (EGRET)

1993 ◽  
Author(s):  
C. E. Fichtel ◽  
D. L. Bertsch ◽  
B. L. Dingus ◽  
R. C. Hartman ◽  
S. D. Hunter ◽  
...  
1994 ◽  
Vol 159 ◽  
pp. 49-52 ◽  
Author(s):  
D.J. Thompson ◽  
D.L. Bertsch ◽  
B.L. Dingus ◽  
J. A. Esposito ◽  
C.E. Fichtel ◽  
...  

The Energetic Gamma Ray Experiment Telescope (EGRET) on the Compton Gamma Ray Observatory has detected more than 20 Active Galactic Nuclei (AGN) at photon energies above 30 MeV.


2008 ◽  
Author(s):  
T. Herr ◽  
W. Hofmann ◽  
Felix A. Aharonian ◽  
Werner Hofmann ◽  
Frank Rieger ◽  
...  

2011 ◽  
Author(s):  
Julian Sitarek ◽  
Fabio Zandanel ◽  
Francisco Prada ◽  
Saverio Lombardi ◽  
Andrii Neronov ◽  
...  

Science ◽  
2009 ◽  
Vol 323 (5922) ◽  
pp. 1688-1693 ◽  
Author(s):  
◽  
A. A. Abdo ◽  
M. Ackermann ◽  
M. Arimoto ◽  
K. Asano ◽  
...  

2010 ◽  
Vol 710 (1) ◽  
pp. 828-835 ◽  
Author(s):  
H. Anderhub ◽  
L. A. Antonelli ◽  
P. Antoranz ◽  
M. Backes ◽  
C. Baixeras ◽  
...  

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