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Discovery of VHE γ-ray emission from the BL Lacertae object B3 2247+381 with the MAGIC telescopes

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dc.contributor.authorParedes i Poy, Josep Maria
dc.contributor.authorRibó Gomis, Marc
dc.contributor.authorMunar i Adrover, Pere
dc.contributor.authorMoldón Vara, Francisco Javier
dc.date.accessioned2020-02-21T11:35:22Z
dc.date.available2020-02-21T11:35:22Z
dc.date.issued2012-03-02
dc.date.updated2020-02-21T11:35:22Z
dc.description.abstractAims: We study the non-thermal jet emission of the BL Lac object B3 2247+381 during a high optical state. Methods: The MAGIC telescopes observed the source during 13 nights between September 30th and October 30th 2010, collecting a total of 14.2 h of good quality very high energy (VHE) γ-ray data. Simultaneous multiwavelength data was obtained with X-ray observations by the Swift satellite and optical R-band observations at the KVA-telescope. We also use high energy γ-ray (HE, 0.1-100 GeV) data from the Fermi satellite. Results: The BL Lac object B3 2247+381 (z = 0.119) was detected, for the first time, at VHE γ-rays at a statistical significance of 5.6σ. A soft VHE spectrum with a photon index of -3.2 ± 0.6 was determined. No significant short term flux variations were found. We model the spectral energy distribution using a one-zone SSC-model, which can successfully describe our data.
dc.format.mimetypeapplication/pdf
dc.identifier.idgrec612843
dc.identifier.issn0004-6361
dc.identifier.urihttps://hdl.handle.net/2445/151000
dc.language.isoeng
dc.publisherEDP Sciences
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1051/0004-6361/201117967
dc.relation.ispartofAstronomy & Astrophysics, 2012, vol. 539A, p. 118A
dc.relation.urihttps://doi.org/10.1051/0004-6361/201117967
dc.rights(c) The European Southern Observatory (ESO), 2012
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)
dc.subject.classificationGalàxies actives
dc.subject.otherActive galaxies
dc.titleDiscovery of VHE γ-ray emission from the BL Lacertae object B3 2247+381 with the MAGIC telescopes
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion

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