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Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/44499
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dc.contributor.authorMAGIC Collaboration-
dc.contributor.authorRibó Gomis, Marc-
dc.contributor.authorBosch i Ramon, Valentí-
dc.contributor.authorParedes i Poy, Josep Maria-
dc.contributor.authorVERITAS Collaboration-
dc.date.accessioned2013-06-28T11:35:32Z-
dc.date.available2013-06-28T11:35:32Z-
dc.date.issued2009-
dc.identifier.issn0036-8075-
dc.identifier.urihttp://hdl.handle.net/2445/44499-
dc.description.abstractThe accretion of matter onto a massive black hole is believed to feed the relativistic plasma jets found in many active galactic nuclei (AGN). Although some AGN accelerate particles to energies exceeding 1012 electron volts and are bright sources of very-high-energy (VHE) γ-ray emission, it is not yet known where the VHE emission originates. Here we report on radio and VHE observations of the radio galaxy Messier 87, revealing a period of extremely strong VHE γ-ray flares accompanied by a strong increase of the radio flux from its nucleus. These results imply that charged particles are accelerated to very high energies in the immediate vicinity of the black hole.-
dc.format.extent21 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherAmerican Association for the Advancement of Science-
dc.relation.isformatofVersió postprint del document publicat a: http://dx.doi.org/10.1126/science.1175406-
dc.relation.ispartofScience, 2009, vol. 325, num. 5939, p. 444-448-
dc.relation.urihttp://dx.doi.org/10.1126/science.1175406-
dc.rights(c) Acciari, V. A. et al., 2009-
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)-
dc.subject.classificationForats negres (Astronomia)-
dc.subject.classificationNucli galàctic actiu-
dc.subject.classificationRadioastronomia-
dc.subject.classificationJets (Astrofísica)-
dc.subject.otherBlack holes (Astronomy)-
dc.subject.otherActive galactic nuclei-
dc.subject.otherRadio astronomy-
dc.subject.otherAstrophysical jets-
dc.titleRadio Imaging of the Very-High-Energy γ-Ray Emission Region in the Central Engine of a Radio Galaxy-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/acceptedVersion-
dc.identifier.idgrec570806-
dc.date.updated2013-06-28T11:35:32Z-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
dc.identifier.pmid19574351-
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