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Long Term Observati...
Long Term Observations of B2 1215+30 with VERITAS
- Article/chapterEnglish2013
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LIBRIS-ID:oai:DiVA.org:lnu-42727
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https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-42727URI
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https://doi.org/10.1088/0004-637X/779/2/92DOI
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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 on VERITAS observations of the BL Lac object B2 1215+30 between 2008 and 2012. During this period, the source was detected at very high energies (VHEs; E > 100 GeV) by VERITAS with a significance of 8.9s and showed clear variability on timescales larger than months. In 2011, the source was found to be in a relatively bright state and a power-law fit to the differential photon spectrum yields a spectral index of 3.6 +/- 0.4(stat) +/- 0.3(syst) withan integral flux above 200 GeV of (8.0 +/- 0.9(stat) +/- 3.2(syst)) x 10(-12) cm(-2) s(-1). No short term variability could be detected during the bright state in 2011. Multi-wavelength data were obtained contemporaneously with the VERITAS observations in 2011 and cover optical (Super-LOTIS, MDM, Swift/UVOT), X-ray (Swift/XRT), and gamma-ray (Fermi-LAT) frequencies. These were used to construct the spectral energy distribution (SED) of B2 1215+30. A one-zone leptonic model is used to model the blazar emission and the results are compared to those of MAGIC from early 2011 and other VERITAS-detected blazars. The SED can be reproduced well with model parameters typical for VHE-detected BL Lac objects.
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Archambault, S.
(author)
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Arlen, T.
(author)
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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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Bird, R.
(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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Cesarini, A.
(author)
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Ciupik, L.
(author)
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Connolly, M. P.
(author)
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Cui, W.
(author)
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Dumm, J.
(author)
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Errando, M.
(author)
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Falcone, A.
(author)
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Federici, S.
(author)
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Feng, Q.
(author)
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Finley, J. P.
(author)
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Fortin, P.
(author)
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Fortson, L.
(author)
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Furniss, A.
(author)
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Galante, N.
(author)
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Gérard, L.
(author)
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Gillanders, G. H.
(author)
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Griffin, S.
(author)
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Grube, J.
(author)
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Gyuk, G.
(author)
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Hanna, D.
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Holder, J.
(author)
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Hughes, G.
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Humensky, T. B.
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Kaaret, P.
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Kertzman, M.
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Khassen, Y.
(author)
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Kieda, D.
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Krawczynski, H.
(author)
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Krennrich, F.
(author)
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Lang, M. J.
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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.
(author)
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Mukherjee, R.
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Nieto, D.
(author)
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O’Faoláin de Bhróithe, A.
(author)
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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.
(author)
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Perkins, J. S.
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Pohl, M.
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Popkow, A.
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Prokoph, HeikeDESY, Germany(Swepub:lnu)hepraa
(author)
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Quinn, J.
(author)
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Ragan, K.
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Reyes, L. C.
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Reynolds, P. T.
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Richards, G. T.
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Roache, E.
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Saxon, D. B.
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Sembroski, G. H.
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Skole, C.
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Smith, A. W.
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Soares-Furtado, M.
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Staszak, D.
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Telezhinsky, I.
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Te\v sić, G.
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Theiling, M.
(author)
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Varlotta, A.
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Vassiliev, V. V.
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Vincent, S.
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Wakely, S. P.
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Weekes, T. C.
(author)
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Weinstein, A.
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Welsing, R.
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Williams, D. A.
(author)
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Zitzer, B.
(author)
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Collaboration, V E R I T A S
(author)
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Böttcher, M.
(author)
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Fumagalli, M.
(author)
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Jadhav, J.
(author)
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DESY, Germany
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In:Astrophysical Journal779:20004-637X1538-4357
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Aliu, E.
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Archambault, S.
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Arlen, T.
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Aune, T.
-
Beilicke, M.
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Benbow, W.
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show more...
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Bird, R.
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Bouvier, A.
-
Buckley, J. H.
-
Bugaev, V.
-
Cesarini, A.
-
Ciupik, L.
-
Connolly, M. P.
-
Cui, W.
-
Dumm, J.
-
Errando, M.
-
Falcone, A.
-
Federici, S.
-
Feng, Q.
-
Finley, J. P.
-
Fortin, P.
-
Fortson, L.
-
Furniss, A.
-
Galante, N.
-
Gérard, L.
-
Gillanders, G. H ...
-
Griffin, S.
-
Grube, J.
-
Gyuk, G.
-
Hanna, D.
-
Holder, J.
-
Hughes, G.
-
Humensky, T. B.
-
Kaaret, P.
-
Kertzman, M.
-
Khassen, Y.
-
Kieda, D.
-
Krawczynski, H.
-
Krennrich, F.
-
Lang, M. J.
-
Madhavan, A. S.
-
Maier, G.
-
Majumdar, P.
-
McArthur, S.
-
McCann, A.
-
Moriarty, P.
-
Mukherjee, R.
-
Nieto, D.
-
O’Faoláin de Bhr ...
-
Ong, R. A.
-
Orr, M.
-
Otte, A. N.
-
Park, N.
-
Perkins, J. S.
-
Pohl, M.
-
Popkow, A.
-
Prokoph, Heike
-
Quinn, J.
-
Ragan, K.
-
Reyes, L. C.
-
Reynolds, P. T.
-
Richards, G. T.
-
Roache, E.
-
Saxon, D. B.
-
Sembroski, G. H.
-
Skole, C.
-
Smith, A. W.
-
Soares-Furtado, ...
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Staszak, D.
-
Telezhinsky, I.
-
Te\v sić, G.
-
Theiling, M.
-
Varlotta, A.
-
Vassiliev, V. V.
-
Vincent, S.
-
Wakely, S. P.
-
Weekes, T. C.
-
Weinstein, A.
-
Welsing, R.
-
Williams, D. A.
-
Zitzer, B.
-
Collaboration, V ...
-
Böttcher, M.
-
Fumagalli, M.
-
Jadhav, J.
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