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Observations of the shell-type SNR Cassiopeia A at TeV energies with VERITAS

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dc.contributor.author Lang, Mark en
dc.contributor.author Gillanders, Gary en
dc.date.accessioned 2011-03-10T10:37:15Z en
dc.date.available 2011-03-10T10:37:15Z en
dc.date.issued 2010 en
dc.identifier.citation The VERITAS Collaboration: V. A. Acciari, E. Aliu, T. Arlen, T. Aune, M. Bauti...(2010)Observations of the shell-type SNR Cassiopeia A at TeV energies with VERITAS. Astrophys.J.714:163-169,2010 en
dc.identifier.uri http://hdl.handle.net/10379/1702 en
dc.description.abstract We report on observations of very high-energy gamma rays from the shell-type supernova remnant Cassiopeia A with the VERITAS stereoscopic array of four imaging atmospheric Cherenkov telescopes in Arizona. The total exposure time for these observations is 22 hours, accumulated between September and November of 2007. The gamma-ray source associated with the SNR Cassiopeia A was detected above 200 GeV with a statistical significance of 8.3 s.d. The estimated integral flux for this gamma-ray source is about 3% of the Crab-Nebula flux. The photon spectrum is compatible with a power law dN/dE ~ E^(-Gamma) with an index Gamma = 2.61 +/- 0.24(stat) +/- 0.2(sys). The data are consistent with a point-like source. We provide a detailed description of the analysis results, and discuss physical mechanisms that may be responsible for the observed gamma-ray emission. en
dc.format application/pdf en
dc.language.iso en en
dc.subject Astrophysics - High Energy Astrophysical Phenomena en
dc.subject Astrophysics - Galaxy Astrophysics en
dc.title Observations of the shell-type SNR Cassiopeia A at TeV energies with VERITAS en
dc.type Article en
dc.local.publishedsource http://arxiv.org/pdf/1002.2974 en
dc.description.peer-reviewed peer-reviewed en
dc.local.authors The VERITAS Collaboration: V. A. Acciari, E. Aliu, T. Arlen, T. Aune, M. Bautista, M. Beilicke, W. Benbow, D. Boltuch, S.M. Bradbury, J.H. Buckley, V. Bugaev, Y. Butt, K. Byrum, A. Cannon, A. Cesarini, Y.C. Chow, L. Ciupik, P. Cogan, W. Cui, R. Dickherber, C. Duke, T. Ergin, S.J. Fegan, J.P. Finley, G. Finnegan, P. Fortin, L. Fortson, A. Furniss, N. Galante, D. Gall, G.H. Gillanders, J. Grube, R. Guenette, G. Gyuk, D. Hanna, J. Holder, D. Huang, C.M. Hui, T.B. Humensky, P. Kaaret, N. Karlsson, M. Kertzman, D. Kieda, A. Konopelko, H. Krawczynski, F. Krennrich, M.J. Lang, S. LeBohec, G. Maier, S. McArthur, A. McCann, M. McCutcheon, J. Millis, P. Moriarty, R.A. Ong, D. Pandel, J.S. Perkins, M. Pohl, J. Quinn, K. Ragan, P.T. Reynolds, E. Roache, H.J. Rose, M. Schroedter, G.H. Sembroski, A.W. Smith, B.R. Smith, D. Steele, S.P. Swordy, M. Theiling, S. Thibadeau, A. Varlotta, V.V. Vassiliev, S. Vincent, R.G. Wagner, S.P. Wakely, J.E. Ward, T.C. Weekes, A. Weinstein, T. Weisgarber, S. Wissel, M. Wood en
dc.local.arxivid 1002.2974 en

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