Discovery of Very-high-energy Emission from RGB J2243+203 and Derivation of Its Redshift Upper Limit

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dc.contributor.authorAbeysekara, A. U.
dc.contributor.authorArchambault, S.
dc.contributor.authorArcher, A.
dc.contributor.authorBenbow, W.
dc.contributor.authorBird, R.
dc.contributor.authorBrose, R.
dc.contributor.authorBuchovecky, M.
dc.contributor.authorBuckley, J. H.
dc.contributor.authorBugaev, V.
dc.contributor.authorCerruti, M.
dc.contributor.authorConnolly, M. P.
dc.contributor.authorCui, W.
dc.contributor.authorFalcone, A.
dc.contributor.authorFeng, Q.
dc.contributor.authorFinley, J. P.
dc.contributor.authorFleischhack, H.
dc.contributor.authorFortson, L.
dc.contributor.authorFurniss, A.
dc.contributor.authorGillanders, G. H.
dc.contributor.authorGriffin, S.
dc.contributor.authorGrube, J.
dc.contributor.authorHuetten, M.
dc.contributor.authorHanna, D.
dc.contributor.authorHervet, O.
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.authorKertzman, M.
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.authorMoriarty, P.
dc.contributor.authorMukherjee, R.
dc.contributor.authorNieto, D.
dc.contributor.authorO'Brien, S.
dc.contributor.authorOng, R. A.
dc.contributor.authorOtte, A. N.
dc.contributor.authorPark, N.
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.authorReynolds, P. T.
dc.contributor.authorRichards, G. T.
dc.contributor.authorRoache, E.
dc.contributor.authorRulten, C.
dc.contributor.authorSadeh, I.
dc.contributor.authorSantander, M.
dc.contributor.authorSembroski, G. H.
dc.contributor.authorShahinyan, K.
dc.contributor.authorStaszak, D.
dc.contributor.authorTelezhinsky, I.
dc.contributor.authorTyler, J.
dc.contributor.authorVassiliev, V. V.
dc.contributor.authorWakely, S. P.
dc.contributor.authorWeiner, O. M.
dc.contributor.authorWeinstein, A.
dc.contributor.authorWilcox, P.
dc.contributor.authorWilhelm, A.
dc.contributor.authorWilliams, D. A.
dc.contributor.authorZitzer, B.
dc.contributor.otherUtah System of Higher Education
dc.contributor.otherUniversity of Utah
dc.contributor.otherMcGill University
dc.contributor.otherWashington University (WUSTL)
dc.contributor.otherHarvard University
dc.contributor.otherSmithsonian Institution
dc.contributor.otherUniversity of California System
dc.contributor.otherUniversity of California Los Angeles
dc.contributor.otherUniversity of Potsdam
dc.contributor.otherHelmholtz Association
dc.contributor.otherDeutsches Elektronen-Synchrotron (DESY)
dc.contributor.otherOllscoil na Gaillimhe-University of Galway
dc.contributor.otherPurdue University System
dc.contributor.otherPurdue University
dc.contributor.otherPurdue University West Lafayette Campus
dc.contributor.otherTsinghua University
dc.contributor.otherPennsylvania Commonwealth System of Higher Education (PCSHE)
dc.contributor.otherPennsylvania State University
dc.contributor.otherPennsylvania State University - University Park
dc.contributor.otherUniversity of Minnesota System
dc.contributor.otherUniversity of Minnesota Twin Cities
dc.contributor.otherCalifornia State University System
dc.contributor.otherCalifornia State University East Bay
dc.contributor.otherStevens Institute of Technology
dc.contributor.otherUniversity of California Santa Cruz
dc.contributor.otherUniversity of Delaware
dc.contributor.otherColumbia University
dc.contributor.otherUniversity of Iowa
dc.contributor.otherDePauw University
dc.contributor.otherIowa State University
dc.contributor.otherUniversity College Dublin
dc.contributor.otherUniversity System of Georgia
dc.contributor.otherGeorgia Institute of Technology
dc.contributor.otherUniversity of Chicago
dc.contributor.otherCork Institute of Technology
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2019-06-17T20:39:49Z
dc.date.available2019-06-17T20:39:49Z
dc.date.issued2017-11-10
dc.description.abstractVery-high-energy (VHE; > 100 GeV) gamma-ray emission from the blazar RGB J2243+203 was discovered with the VERITAS Cherenkov telescope array, during the period between 2014 December 21 and 24. The VERITAS energy spectrum from this source can be fitted by a power law with a photon index of 4.6 +/- 0.5, and a flux normalization at 0.15 TeV of (6.3 +/- 1.1) x 10(-10) cm(-2) s(-1) TeV-1. The integrated Fermi-LAT flux from 1 to 100 GeV during the VERITAS detection is (4.1 +/- 0.8) x 10(-8) cm(-2) s(-1), which is an order of magnitude larger than the four-year-averaged flux in the same energy range reported in the 3FGL catalog, (4.0 +/- 0.1 x 10(-9) cm(-2) s(-1)). The detection with VERITAS triggered observations in the X-ray band with the Swift-XRT. However, due to scheduling constraints Swift-XRT observations were performed 67 hr after the VERITAS detection, rather than simultaneously with the VERITAS observations. The observed X-ray energy spectrum between 2 and 10 keV can be fitted with a power law with a spectral index of 2.7 +/- 0.2, and the integrated photon flux in the same energy band is (3.6 +/- 0.6) x 10(-13) cm(-2) s(-1). EBL-model-dependent upper limits of the blazar redshift have been derived. Depending on the EBL model used, the upper limit varies in the range from z < 0.9 to z < 1.1.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.citationAbeysekara, A.U., et al. (2017): Discovery of Very-high-energy Emission from RGB J2243+203 and Derivation of Its Redshift Upper Limit. The Astrophysical Journal, 233(1). DOI: https://doi.org/10.3847/1538-4365/aa8d76
dc.identifier.doi10.3847/1538-4365/aa8d76
dc.identifier.orcidhttps://orcid.org/0000-0001-7891-699X
dc.identifier.orcidhttps://orcid.org/0000-0001-7861-1707
dc.identifier.orcidhttps://orcid.org/0000-0002-5955-6383
dc.identifier.orcidhttps://orcid.org/0000-0001-6674-4238
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dc.identifier.orcidhttps://orcid.org/0000-0002-4855-2694
dc.identifier.orcidhttps://orcid.org/0000-0002-8312-6930
dc.identifier.orcidhttps://orcid.org/0000-0002-4596-8563
dc.identifier.orcidhttps://orcid.org/0000-0003-4785-0101
dc.identifier.orcidhttps://orcid.org/0000-0002-1067-8558
dc.identifier.orcidhttps://orcid.org/0000-0003-1387-8915
dc.identifier.orcidhttps://orcid.org/0000-0001-9868-4700
dc.identifier.orcidhttps://orcid.org/0000-0001-7297-8217
dc.identifier.orcidhttps://orcid.org/0000-0003-1614-1273
dc.identifier.orcidhttps://orcid.org/0000-0002-0794-8780
dc.identifier.orcidhttps://orcid.org/0000-0002-1432-7771
dc.identifier.orcidhttps://orcid.org/0000-0003-2098-170X
dc.identifier.orcidhttps://orcid.org/0000-0002-2133-5251
dc.identifier.orcidhttps://orcid.org/0000-0002-8006-9854
dc.identifier.orcidhttps://orcid.org/0000-0003-2740-9714
dc.identifier.urihttp://ir.ua.edu/handle/123456789/5778
dc.languageEnglish
dc.language.isoen_US
dc.publisherIOP Publishing
dc.subjectgalaxies: individual (RGB J2243+203)
dc.subjectEXTRAGALACTIC BACKGROUND LIGHT
dc.subjectAstronomy & Astrophysics
dc.titleDiscovery of Very-high-energy Emission from RGB J2243+203 and Derivation of Its Redshift Upper Limiten_US
dc.typetext
dc.typeArticle

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