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Gamma-rays from the quasar pks 1441+25: story of an escape

dc.contributor.authorAbeysekara, A. U.
dc.contributor.authorArchambault, S.
dc.contributor.authorArcher, A.
dc.contributor.authorAune, T.
dc.contributor.authorBarnacka, A.
dc.contributor.authorBenbow, W.
dc.contributor.authorBird, R.
dc.contributor.authorBiteau, J.
dc.contributor.authorBuckley, J. H.
dc.contributor.authorBugaev, V.
dc.contributor.authorCardenzana, J. V.
dc.contributor.authorCerruti, M.
dc.contributor.authorChen, X.
dc.contributor.authorChristiansen, J. L.
dc.contributor.authorCiupik, L.
dc.contributor.authorConnolly, M. P.
dc.contributor.authorCoppi, P.
dc.contributor.authorCui, W.
dc.contributor.authorDickinson, H. J.
dc.contributor.authorDumm, J.
dc.contributor.authorEisch, J. D.
dc.contributor.authorErrando, M.
dc.contributor.authorFalcone, A.
dc.contributor.authorFeng, Q.
dc.contributor.authorFinley, J. P.
dc.contributor.authorFleischhack, H.
dc.contributor.authorFlinders, A.
dc.contributor.authorFortin, P.
dc.contributor.authorFortson, L.
dc.contributor.authorFurniss, A.
dc.contributor.authorGillanders, G. H.
dc.contributor.authorGriffin, S.
dc.contributor.authorGrube, J.
dc.contributor.authorGyuk, G.
dc.contributor.authorHütten, M.
dc.contributor.authorHåkansson, N.
dc.contributor.authorHanna, D.
dc.contributor.authorHolder, J.
dc.contributor.authorHumensky, T. B.
dc.contributor.authorJohnson, C. A.
dc.contributor.authorKaaret, P.
dc.contributor.authorKar, P.
dc.contributor.authorKelley-Hoskins, N.
dc.contributor.authorKhassen, Y.
dc.contributor.authorKieda, D.
dc.contributor.authorKrause, M.
dc.contributor.authorKrennrich, F.
dc.contributor.authorKumar, S.
dc.contributor.authorLang, M. J.
dc.contributor.authorMaier, G.
dc.contributor.authorMcArthur, S.
dc.contributor.authorMcCann, A.
dc.contributor.authorMeagher, K.
dc.contributor.authorMoriarty, P.
dc.contributor.authorMukherjee, R.
dc.contributor.authorNieto, D.
dc.contributor.authorBhróithe, A. O’Faoláin de
dc.contributor.authorOng, R. A.
dc.contributor.authorOtte, A. N.
dc.contributor.authorPark, N.
dc.contributor.authorPerkins, J. S.
dc.contributor.authorPetrashyk, A.
dc.contributor.authorPohl, M.
dc.contributor.authorPopkow, A.
dc.contributor.authorPueschel, E.
dc.contributor.authorQuinn, J.
dc.contributor.authorRagan, K.
dc.contributor.authorRatliff, G.
dc.contributor.authorReynolds, P. T.
dc.contributor.authorRichards, G. T.
dc.contributor.authorRoache, E.
dc.contributor.authorRousselle, J.
dc.contributor.authorSantander, M.
dc.contributor.authorSembroski, G. H.
dc.contributor.authorShahinyan, K.
dc.contributor.authorSmith, A. W.
dc.contributor.authorStaszak, D.
dc.contributor.authorTelezhinsky, I.
dc.contributor.authorTodd, N. W.
dc.contributor.authorTucci, J. V.
dc.contributor.authorTyler, J.
dc.contributor.authorVassiliev, V. V.
dc.contributor.authorVincent, S.
dc.contributor.authorWakely, S. P.
dc.contributor.authorWeiner, O. M.
dc.contributor.authorWeinstein, A.
dc.contributor.authorWilhelm, A.
dc.contributor.authorWilliams, D. A.
dc.contributor.authorZitzer, B.
dc.contributor.authorSmith, P. S.
dc.contributor.authorHoloien, T. W.-S.
dc.contributor.authorPrieto, J. L.
dc.contributor.authorKochanek, C. S.
dc.contributor.authorStanek, K. Z.
dc.contributor.authorShappee, B.
dc.contributor.authorHovatta, T.
dc.contributor.authorMax-Moerbeck, W.
dc.contributor.authorPearson, T. J.
dc.contributor.authorReeves, R. A.
dc.contributor.authorRichards, J. L.
dc.contributor.authorReadhead, A. C. S.
dc.contributor.authorMadejski, G. M.
dc.contributor.authorDjorgovski, S. G.
dc.contributor.authorDrake, A. J.
dc.contributor.authorGraham, M. J.
dc.contributor.authorMahabal, A.
dc.contributor.author,
dc.contributor.author,
dc.contributor.author,
dc.contributor.author,
dc.contributor.author,
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dc.date.accessioned2018-09-20T15:58:34Z
dc.date.available2018-09-20T15:58:34Z
dc.date.issued2015-12-15
dc.identifier.citationAbeysekara, A. U. Archambault, S.; Archer, A.; Aune, T.; Barnacka, A.; Benbow, W.; Bird, R.; Biteau, J.; Buckley, J. H.; Bugaev, V.; Cardenzana, J. V.; Cerruti, M.; Chen, X.; Christiansen, J. L.; Ciupik, L.; Connolly, M. P.; Coppi, P.; Cui, W.; Dickinson, H. J.; Dumm, J.; Eisch, J. D.; Errando, M.; Falcone, A.; Feng, Q.; Finley, J. P.; Fleischhack, H.; Flinders, A.; Fortin, P.; Fortson, L.; Furniss, A.; Gillanders, G. H.; Griffin, S.; Grube, J.; Gyuk, G.; Hütten, M.; Håkansson, N.; Hanna, D.; Holder, J.; Humensky, T. B.; Johnson, C. A.; Kaaret, P.; Kar, P.; Kelley-Hoskins, N.; Khassen, Y.; Kieda, D.; Krause, M.; Krennrich, F.; Kumar, S.; Lang, M. J.; Maier, G.; McArthur, S.; McCann, A.; Meagher, K.; Moriarty, P.; Mukherjee, R.; Nieto, D.; Bhróithe, A. O’Faoláin de; Ong, R. A.; Otte, A. N.; Park, N.; Perkins, J. S.; Petrashyk, A.; Pohl, M.; Popkow, A.; Pueschel, E.; Quinn, J.; Ragan, K.; Ratliff, G.; Reynolds, P. T.; Richards, G. T.; Roache, E.; Rousselle, J.; Santander, M.; Sembroski, G. H.; Shahinyan, K.; Smith, A. W.; Staszak, D.; Telezhinsky, I.; Todd, N. W.; Tucci, J. V.; Tyler, J.; Vassiliev, V. V.; Vincent, S.; Wakely, S. P.; Weiner, O. M.; Weinstein, A.; Wilhelm, A.; Williams, D. A.; Zitzer, B.; Smith, P. S.; Holoien, T. W.-S.; Prieto, J. L.; Kochanek, C. S.; Stanek, K. Z.; Shappee, B.; Hovatta, T.; Max-Moerbeck, W.; Pearson, T. J.; Reeves, R. A.; Richards, J. L.; Readhead, A. C. S.; Madejski, G. M.; Djorgovski, S. G.; Drake, A. J.; Graham, M. J.; Mahabal, A.; , ; , ; , ; , ; , ; , (2015). Gamma-rays from the quasar pks 1441+25: story of an escape. The Astrophysical Journal 815 (2),
dc.identifier.issn2041-8213
dc.identifier.urihttp://hdl.handle.net/10379/10070
dc.description.abstractOutbursts from gamma-ray quasars provide insights on the relativistic jets of active galactic nuclei and constraints on the diffuse radiation fields that fill the universe. The detection of significant emission above 100 GeV from a distant quasar would show that some of the radiated gamma-rays escape pair-production interactions with low-energy photons, be it the extragalactic background light (EBL), or the radiation near the supermassive black hole lying at the jet's base. VERITAS detected gamma-ray emission up to similar to 200 GeV from PKS 1441+25 (z = 0.939) during 2015 April, a period of high activity across all wavelengths. This observation of PKS 1441+25 suggests that the emission region is located thousands of Schwarzschild radii away from the black hole. The gamma-ray detection also sets a stringent upper limit on the near-ultraviolet to near-infrared EBL intensity, suggesting that galaxy surveys have resolved most, if not all, of the sources of the EBL at these wavelengths.
dc.publisherIOP Publishing
dc.relation.ispartofThe Astrophysical Journal
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Ireland
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/ie/
dc.subjectcosmology: observations
dc.subjectdiffuse radiation
dc.subjectgamma rays: galaxies
dc.subjectquasars: individual (pks 1441+25-ver j1443+250)
dc.subjectradiation mechanisms: non-thermal
dc.subjectextragalactic background light
dc.subjectcomplete sample
dc.subjectfermi blazars
dc.subjectspectra
dc.subjectvariability
dc.subjecttelescope
dc.subjectradiation
dc.subjectemission
dc.subjectmission
dc.subjectabsorption
dc.titleGamma-rays from the quasar pks 1441+25: story of an escape
dc.typeArticle
dc.identifier.doi10.1088/2041-8205/815/2/l22
dc.local.publishedsourcehttp://iopscience.iop.org/article/10.1088/2041-8205/815/2/L22/pdf
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