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Cutoff in the t[clc]e[/clc]v energy spectrum of markarian 421 during strong flares in 2001

dc.contributor.authorKrennrich, F.
dc.contributor.authorBadran, H. M.
dc.contributor.authorBond, I. H.
dc.contributor.authorBradbury, S. M.
dc.contributor.authorBuckley, J. H.
dc.contributor.authorCarter-Lewis, D. A.
dc.contributor.authorCatanese, M.
dc.contributor.authorCui, W.
dc.contributor.authorDunlea, S.
dc.contributor.authorDas, D.
dc.contributor.authorde la Calle Perez, I.
dc.contributor.authorFegan, D. J.
dc.contributor.authorFegan, S. J.
dc.contributor.authorFinley, J. P.
dc.contributor.authorGaidos, J. A.
dc.contributor.authorGibbs, K.
dc.contributor.authorGillanders, G. H.
dc.contributor.authorHall, T. A.
dc.contributor.authorHillas, A. M.
dc.contributor.authorHolder, J.
dc.contributor.authorHoran, D.
dc.contributor.authorJordan, M.
dc.contributor.authorKertzman, M.
dc.contributor.authorKieda, D.
dc.contributor.authorKildea, J.
dc.contributor.authorKnapp, J.
dc.contributor.authorKosack, K.
dc.contributor.authorLang, M. J.
dc.contributor.authorLeBohec, S.
dc.contributor.authorMcKernan, B.
dc.contributor.authorMoriarty, P.
dc.contributor.authorMüller, D.
dc.contributor.authorOng, R.
dc.contributor.authorPallassini, R.
dc.contributor.authorPetry, D.
dc.contributor.authorQuinn, J.
dc.contributor.authorReay, N. W.
dc.contributor.authorReynolds, P. T.
dc.contributor.authorRose, H. J.
dc.contributor.authorSembroski, G. H.
dc.contributor.authorSidwell, R.
dc.contributor.authorStanton, N.
dc.contributor.authorSwordy, S. P.
dc.contributor.authorVassiliev, V. V.
dc.contributor.authorWakely, S. P.
dc.contributor.authorWeekes, T. C.
dc.date.accessioned2018-08-24T08:25:22Z
dc.date.available2018-08-24T08:25:22Z
dc.date.issued2001-10-10
dc.identifier.citationKrennrich, F. Badran, H. M.; Bond, I. H.; Bradbury, S. M.; Buckley, J. H.; Carter-Lewis, D. A.; Catanese, M.; Cui, W.; Dunlea, S.; Das, D.; de la Calle Perez, I.; Fegan, D. J.; Fegan, S. J.; Finley, J. P.; Gaidos, J. A.; Gibbs, K.; Gillanders, G. H.; Hall, T. A.; Hillas, A. M.; Holder, J.; Horan, D.; Jordan, M.; Kertzman, M.; Kieda, D.; Kildea, J.; Knapp, J.; Kosack, K.; Lang, M. J.; LeBohec, S.; McKernan, B.; Moriarty, P.; Müller, D.; Ong, R.; Pallassini, R.; Petry, D.; Quinn, J.; Reay, N. W.; Reynolds, P. T.; Rose, H. J.; Sembroski, G. H.; Sidwell, R.; Stanton, N.; Swordy, S. P.; Vassiliev, V. V.; Wakely, S. P.; Weekes, T. C. (2001). Cutoff in the t[clc]e[/clc]v energy spectrum of markarian 421 during strong flares in 2001. The Astrophysical Journal 560 (1), L45-L48
dc.identifier.issn0004-637X
dc.identifier.urihttp://hdl.handle.net/10379/9412
dc.description.abstractExceptionally strong and long- lasting flaring activity of the blazar Mrk 421 occurred between 2001 January and March. Based on the excellent signal- to- noise ratio of the data, we derive the energy spectrum between 260 GeV and 17 TeV with unprecedented statistical precision. The spectrum is not well described by a simple power law even with a curvature term. Instead, the data can be described by a power law with exponential cutoff: dN/dE proportional to E(-2.14 +/-0.03 stat)e(-E/E0) m(-2) s(-1) TeV-1 with E0=4.3 +/-0.3(stat) TeV. Mrk 421 is the second gamma -ray blazar that unambiguously exhibits an absorption- like feature in its spectral energy distribution at 3-6 TeV.
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.subjectbl lacertae objects : individual (markarian 421)
dc.subjectgamma rays : observations
dc.subjectactive galaxy markarian-421
dc.subjectcherenkov telescope system
dc.subjectgamma-rays
dc.subjectmkn-501
dc.subjectacceleration
dc.subjectobjects
dc.subjectphotons
dc.subjectblazar
dc.subjecthegra
dc.subjectjet
dc.titleCutoff in the t[clc]e[/clc]v energy spectrum of markarian 421 during strong flares in 2001
dc.typeArticle
dc.identifier.doi10.1086/324221
dc.local.publishedsourcehttp://iopscience.iop.org/article/10.1086/324221/pdf
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