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Constraints on Cosm...
Constraints on Cosmic Rays, Magnetic Fields, and Dark Matter from Gamma-Ray Observations of the Coma Cluster of Galaxies with VERITAS and Fermi
- Article/chapterEnglish2012
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LIBRIS-ID:oai:DiVA.org:lnu-42800
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https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-42800URI
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https://doi.org/10.1088/0004-637X/757/2/123DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
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We report the discovery of TeV gamma-ray emission coincident with the shell-type radio supernova remnant (SNR) CTA 1 using the VERITAS gamma-ray observatory. The source, VER J0006+729, was detected as a 6.5 standard deviation excess over background and shows an extended morphology, approximated by a two-dimensional Gaussian of semimajor (semiminor) axis 030 (024) and a centroid 5' from the Fermi gamma-ray pulsar PSR J0007+7303 and its X-ray pulsar wind nebula (PWN). The photon spectrum is well described by a power-law dN/dE = N 0(E/3 TeV)–Γ, with a differential spectral index of Γ = 2.2 ± 0.2stat ± 0.3sys, and normalization N 0 = (9.1 ± 1.3stat ± 1.7sys) × 10–14 cm–2 s–1 TeV–1. The integral flux, F γ = 4.0 ×10–12 erg cm–2 s–1 above 1 TeV, corresponds to 0.2% of the pulsar spin-down power at 1.4 kpc. The energetics, colocation with the SNR, and the relatively small extent of the TeV emission strongly argue for the PWN origin of the TeV photons. We consider the origin of the TeV emission in CTA 1.
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Aune, T.
(author)
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Beilicke, M.
(author)
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Benbow, W.
(author)
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Bouvier, A.
(author)
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Buckley, J. H.
(author)
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Bugaev, V.
(author)
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Byrum, K.
(author)
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Cannon, A.
(author)
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Cesarini, A.
(author)
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Ciupik, L.
(author)
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Collins-Hughes, E.
(author)
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Connolly, M. P.
(author)
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Cui, W.
(author)
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Dickherber, R.
(author)
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Dumm, J.
(author)
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Falcone, A.
(author)
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Federici, S.
(author)
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Feng, Q.
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Finley, J. P.
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Finnegan, G.
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Fortson, L.
(author)
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Furniss, A.
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Galante, N.
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Gall, D.
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Godambe, S.
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Griffin, S.
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Grube, J.
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Gyuk, G.
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Holder, J.
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Huan, H.
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Hughes, G.
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Humensky, T. B.
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Imran, A.
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Kaaret, P.
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Karlsson, N.
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Kertzman, M.
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Khassen, Y.
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Kieda, D.
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Krawczynski, H.
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Krennrich, F.
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Lee, K.
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Madhavan, A. S.
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Maier, G.
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Majumdar, P.
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McArthur, S.
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McCann, A.
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Moriarty, P.
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Mukherjee, R.
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Nelson, T.
(author)
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O’Faoláin de Bhróithe, A.
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Ong, R. A.
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Orr, M.
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Otte, A. N.
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Park, N.
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Perkins, J. S.
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Pohl, M.
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Prokoph, HeikeDESY, Germany(Swepub:lnu)hepraa
(author)
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Quinn, J.
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Ragan, K.
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Reyes, L. C.
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Reynolds, P. T.
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Roache, E.
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Ruppel, J.
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Saxon, D. B.
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Schroedter, M.
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Sembroski, G. H.
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Skole, C.
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Smith, A. W.
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Telezhinsky, I.
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Tesić, G.
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Theiling, M.
(author)
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Thibadeau, S.
(author)
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Tsurusaki, K.
(author)
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Varlotta, A.
(author)
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Vivier, M.
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Wakely, S. P.
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Ward, J. E.
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Weinstein, A.
(author)
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Welsing, R.
(author)
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Williams, D. A.
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Zitzer, B.
(author)
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Pfrommer, C.
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Pinzke, A.
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DESY, Germany
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In:Astrophysical Journal757:20004-637X1538-4357
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Arlen, T.
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Aune, T.
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Beilicke, M.
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Benbow, W.
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Bouvier, A.
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Buckley, J. H.
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show more...
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Bugaev, V.
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Byrum, K.
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Cannon, A.
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Cesarini, A.
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Ciupik, L.
-
Collins-Hughes, ...
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Connolly, M. P.
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Cui, W.
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Dickherber, R.
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Dumm, J.
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Falcone, A.
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Federici, S.
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Feng, Q.
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Finley, J. P.
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Finnegan, G.
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Fortson, L.
-
Furniss, A.
-
Galante, N.
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Gall, D.
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Godambe, S.
-
Griffin, S.
-
Grube, J.
-
Gyuk, G.
-
Holder, J.
-
Huan, H.
-
Hughes, G.
-
Humensky, T. B.
-
Imran, A.
-
Kaaret, P.
-
Karlsson, N.
-
Kertzman, M.
-
Khassen, Y.
-
Kieda, D.
-
Krawczynski, H.
-
Krennrich, F.
-
Lee, K.
-
Madhavan, A. S.
-
Maier, G.
-
Majumdar, P.
-
McArthur, S.
-
McCann, A.
-
Moriarty, P.
-
Mukherjee, R.
-
Nelson, T.
-
O’Faoláin de Bhr ...
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Ong, R. A.
-
Orr, M.
-
Otte, A. N.
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Park, N.
-
Perkins, J. S.
-
Pohl, M.
-
Prokoph, Heike
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Quinn, J.
-
Ragan, K.
-
Reyes, L. C.
-
Reynolds, P. T.
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Roache, E.
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Ruppel, J.
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Saxon, D. B.
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Schroedter, M.
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Sembroski, G. H.
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Skole, C.
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Smith, A. W.
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Telezhinsky, I.
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Tesić, G.
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Theiling, M.
-
Thibadeau, S.
-
Tsurusaki, K.
-
Varlotta, A.
-
Vivier, M.
-
Wakely, S. P.
-
Ward, J. E.
-
Weinstein, A.
-
Welsing, R.
-
Williams, D. A.
-
Zitzer, B.
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Pfrommer, C.
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Pinzke, A.
-
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