Evidence for TeV gamma ray emission from Cassiopeia A

Aharonian, F.; G. Akhperjanian, A.; A. Barrio, J.; Bernlöhr, K.; Börst, H.; Bojahr, H.; Bolz, O.; L. Contreras, J.; Cortina, J.; Denninghoff, S.; Fonseca, V.; González, J.; Götting, N.; Heinzelmann, G.; Hermann, G.; Heusler, Andréas; Hofmann, W.; Horns, D.; Ibarra, A.; Iserlohe, C.; Jung, I.; Kankanyan, R.; Kestel, M.; Kettler, J.; Kohnle, Antje; Konopelko, A.; Kornmeyer, H.; Kranich, D.; Krawczynski, H.; Lampeitl, H.; López, Marcos; Lorenz, E.; Lucarelli, F.; Magnussen, N.; Mang, O.; Meyer, H.; Mirzoyan, R.; Moralejo, A.; Ona, E.; Padilla, L.; Panter, M.; Plaga, R.; Plyasheshnikov, A.; Prahl, J.; Pühlhofer, G.; Rauterberg, Matthias; Röhring, A.; Rhode, W.; Rowell, Gavin; Sahakian, V.; Samorski, M.; Schilling, M.; Schröder, Frank; Siems, M.; Stamm, W.; Tluczykont, M.; J. Völk, H.; A. Wiedner, C.; Wittek, W.

doi:10.1051/0004-6361:20010243

Public

Evidence for TeV gamma ray emission from Cassiopeia A

Published in Astronomy and Astrophysics • Apr 1, 2001

Authors:

F. Aharonian

A. G. Akhperjanian

J. A. Barrio

Abstract

232 hours of data were accumulated from 1997 to 1999, using the HEGRA Stereoscopic Cherenkov Telescope System to observe the supernova remnant Cassiopeia A. TeV γ-ray emission was detected at the level, and a flux of above 1 TeV was derived. The spectral distribution is consistent with a power law w...

Subject

Cassiopeia A

Physics

Cherenkov radiation

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