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Veritas discovery of >200 gev gamma-ray emission from the intermediate-frequency-peaked bl lacertae object w comae

dc.contributor.authorAcciari, V. A.
dc.contributor.authorAliu, E.
dc.contributor.authorBeilicke, M.
dc.contributor.authorBenbow, W.
dc.contributor.authorBöttcher, M.
dc.contributor.authorBradbury, S. M.
dc.contributor.authorBuckley, J. H.
dc.contributor.authorBugaev, V.
dc.contributor.authorButt, Y.
dc.contributor.authorCelik, O.
dc.contributor.authorCesarini, A.
dc.contributor.authorCiupik, L.
dc.contributor.authorChow, Y. C. K.
dc.contributor.authorCogan, P.
dc.contributor.authorColin, P.
dc.contributor.authorCui, W.
dc.contributor.authorDaniel, M. K.
dc.contributor.authorErgin, T.
dc.contributor.authorFalcone, A. D.
dc.contributor.authorFegan, S. J.
dc.contributor.authorFinley, J. P.
dc.contributor.authorFinnegan, G.
dc.contributor.authorFortin, P.
dc.contributor.authorFortson, L. F.
dc.contributor.authorFurniss, A.
dc.contributor.authorGall, D.
dc.contributor.authorGillanders, G. H.
dc.contributor.authorGrube, J.
dc.contributor.authorGuenette, R.
dc.contributor.authorGyuk, G.
dc.contributor.authorHanna, D.
dc.contributor.authorHays, E.
dc.contributor.authorHolder, J.
dc.contributor.authorHoran, D.
dc.contributor.authorHui, C. M.
dc.contributor.authorHumensky, T. B.
dc.contributor.authorImran, A.
dc.contributor.authorKaaret, P.
dc.contributor.authorKarlsson, N.
dc.contributor.authorKertzman, M.
dc.contributor.authorKieda, D. B.
dc.contributor.authorKonopelko, A.
dc.contributor.authorKrawczynski, H.
dc.contributor.authorKrennrich, F.
dc.contributor.authorLang, M. J.
dc.contributor.authorLeBohec, S.
dc.contributor.authorLee, K.
dc.contributor.authorMaier, G.
dc.contributor.authorMcCann, A.
dc.contributor.authorMcCutcheon, M.
dc.contributor.authorMoriarty, P.
dc.contributor.authorMukherjee, R.
dc.contributor.authorNagai, T.
dc.contributor.authorNiemiec, J.
dc.contributor.authorOng, R. A.
dc.contributor.authorPandel, D.
dc.contributor.authorPerkins, J. S.
dc.contributor.authorPetry, D.
dc.contributor.authorPohl, M.
dc.contributor.authorQuinn, J.
dc.contributor.authorRagan, K.
dc.contributor.authorReyes, L. C.
dc.contributor.authorReynolds, P. T.
dc.contributor.authorRoache, E.
dc.contributor.authorRose, H. J.
dc.contributor.authorSchroedter, M.
dc.contributor.authorSembroski, G. H.
dc.contributor.authorSmith, A. W.
dc.contributor.authorSteele, D.
dc.contributor.authorSwordy, S. P.
dc.contributor.authorToner, J. A.
dc.contributor.authorVassiliev, V. V.
dc.contributor.authorWagner, R.
dc.contributor.authorWakely, S. P.
dc.contributor.authorWard, J. E.
dc.contributor.authorWeekes, T. C.
dc.contributor.authorWeinstein, A.
dc.contributor.authorWhite, R. J.
dc.contributor.authorWilliams, D. A.
dc.contributor.authorWissel, S. A.
dc.contributor.authorWood, M.
dc.contributor.authorZitzer, B.
dc.date.accessioned2018-09-20T15:58:54Z
dc.date.available2018-09-20T15:58:54Z
dc.date.issued2008-08-20
dc.identifier.citationAcciari, V. A. Aliu, E.; Beilicke, M.; Benbow, W.; Böttcher, M.; Bradbury, S. M.; Buckley, J. H.; Bugaev, V.; Butt, Y.; Celik, O.; Cesarini, A.; Ciupik, L.; Chow, Y. C. K.; Cogan, P.; Colin, P.; Cui, W.; Daniel, M. K.; Ergin, T.; Falcone, A. D.; Fegan, S. J.; Finley, J. P.; Finnegan, G.; Fortin, P.; Fortson, L. F.; Furniss, A.; Gall, D.; Gillanders, G. H.; Grube, J.; Guenette, R.; Gyuk, G.; Hanna, D.; Hays, E.; Holder, J.; Horan, D.; Hui, C. M.; Humensky, T. B.; Imran, A.; Kaaret, P.; Karlsson, N.; Kertzman, M.; Kieda, D. B.; Konopelko, A.; Krawczynski, H.; Krennrich, F.; Lang, M. J.; LeBohec, S.; Lee, K.; Maier, G.; McCann, A.; McCutcheon, M.; Moriarty, P.; Mukherjee, R.; Nagai, T.; Niemiec, J.; Ong, R. A.; Pandel, D.; Perkins, J. S.; Petry, D.; Pohl, M.; Quinn, J.; Ragan, K.; Reyes, L. C.; Reynolds, P. T.; Roache, E.; Rose, H. J.; Schroedter, M.; Sembroski, G. H.; Smith, A. W.; Steele, D.; Swordy, S. P.; Toner, J. A.; Vassiliev, V. V.; Wagner, R.; Wakely, S. P.; Ward, J. E.; Weekes, T. C.; Weinstein, A.; White, R. J.; Williams, D. A.; Wissel, S. A.; Wood, M.; Zitzer, B. (2008). Veritas discovery of >200 gev gamma-ray emission from the intermediate-frequency-peaked bl lacertae object w comae. The Astrophysical Journal 684 (2), L73-L77
dc.identifier.issn0004-637X,1538-4357
dc.identifier.urihttp://hdl.handle.net/10379/10113
dc.description.abstractWe report the detection of very high energy gamma- ray emission from the intermediate- frequency- peaked BL Lacertae object W Comae (z = 0.102) by VERITAS. The source was observed between 2008 January and April. A strong outburst of gamma-ray emission was measured in the middle of March, lasting for only 4 days. The energy spectrum measured during the two highest flare nights is fit by a power law and is found to be very steep, with a differential photon spectral index of Gamma = 3.81 +/- 0.35(stat) +/- 0.34(syst). The integral photon flux above 200 GeV during those two nights corresponds to roughly 9% of the flux from the Crab Nebula. Quasi-simultaneous Swift observations at X-ray energies were triggered by the VERITAS observations. The spectral energy distribution of the flare data can be described by synchrotron self-Compton (SSC) or external Compton (EC) leptonic jet models.
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 (w comae)
dc.subjectgamma rays : observations
dc.subjecthigh-energy emission
dc.subjectradio-sources
dc.subjectegret
dc.subjectastronomy
dc.subjectspectra
dc.subjectblazars
dc.titleVeritas discovery of >200 gev gamma-ray emission from the intermediate-frequency-peaked bl lacertae object w comae
dc.typeArticle
dc.identifier.doi10.1086/592244
dc.local.publishedsourcehttp://iopscience.iop.org/article/10.1086/592244/pdf
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