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dc.contributor.authorGUPTA, Nen_US
dc.date.accessioned2011-08-03T18:36:33Zen_US
dc.date.accessioned2011-12-26T12:54:20Zen_US
dc.date.accessioned2011-12-27T05:42:03Z
dc.date.available2011-08-03T18:36:33Zen_US
dc.date.available2011-12-26T12:54:20Zen_US
dc.date.available2011-12-27T05:42:03Z
dc.date.issued2008en_US
dc.identifier.citationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, (6), -en_US
dc.identifier.issn1475-7516en_US
dc.identifier.urihttp://dx.doi.org/10.1088/1475-7516/2008/06/022en_US
dc.identifier.urihttp://dspace.library.iitb.ac.in/xmlui/handle/10054/9116en_US
dc.identifier.urihttp://hdl.handle.net/10054/9116
dc.description.abstractCentaurus A, the cosmic ray accelerator a few Mpc away from us, is possibly one of the nearest sources of extremely high energy cosmic rays. We investigate whether the gamma ray data currently available from Centaurus A in the GeV-TeV energy band can be explained with only proton-proton interactions. We show that for a single power law proton spectrum, mechanisms of gamma-ray production other than proton-proton interactions are needed inside this radio-galaxy to explain the gamma ray flux observed by EGRET, upper limits from HESS/CANGAROO-III and the correlated extremely energetic cosmic ray events observed by the Pierre Auger experiment. In future, with better gamma-ray data, and simultaneous observation with gamma-ray and cosmic ray detectors, it will be possible to carry out such studies on different sources in more detail.en_US
dc.language.isoenen_US
dc.publisherIOP PUBLISHING LTDen_US
dc.subjectCosmic-Raysen_US
dc.subjectEmissionen_US
dc.subject.otherUltra High Energy Cosmic Raysen_US
dc.subject.otherUltra High Energy Photons And Neutrinosen_US
dc.titleGamma rays from Centaurus Aen_US
dc.typeArticleen_US


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