Fast variability of TeV gamma-rays from the radio galaxy M 87

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dc.creatorHESS Collaboration
dc.creatorAharonian, F. A.
dc.date2006-12-01
dc.date.accessioned2026-07-07T11:20:48Z
dc.date.available2026-07-07T11:20:48Z
dc.descriptionThe detection of fast variations of the TeV (10^12 eV) gamma-ray flux, on time-scales of days, from the nearby radio galaxy M 87 is reported. These variations are ~10 times faster than that observed in any other waveband and imply a very compact emission region with a dimension similar to the Schwarzschild radius of the central black hole. We thus can exclude several other sites and processes of the gamma-ray production. The observations confirm that TeV gamma-rays are emitted by extragalactic sources other than blazars, where jets are not relativistically beamed towards the observer.
dc.description16 pages, 5 figures, published in Science
dc.identifierhttps://arxiv.org/abs/astro-ph/0612016
dc.identifierhttp://arxiv.org/abs/astro-ph/0612016
dc.identifierScience314:1424,2006
dc.identifierdoi:10.1126/SCIENCE.1134408
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194074
dc.subjectAstrophysics
dc.titleFast variability of TeV gamma-rays from the radio galaxy M 87
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