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- Aliu, E. (author)
Long Term Observations of B2 1215+30 with VERITAS
- Article/chapterEnglish2013
Publisher, publication year, extent ...
- 2013
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:lnu-42727
- https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-42727URI
- https://doi.org/10.1088/0004-637X/779/2/92DOI
Supplementary language notes
- Language:English
- Summary in:English
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- SwePubSwePub
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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.
Subject headings and genre
- NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
- NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
- BL Lacertae objects: general
- BL Lacertae objects: individual: B2 1215+30 (VER J1217+301)
- Astropartikelfysik
- Astroparticle Physics
Added entries (persons, corporate bodies, meetings, titles ...)
- Archambault, S. (author)
- Arlen, T. (author)
- Aune, T. (author)
- Beilicke, M. (author)
- Benbow, W. (author)
- Bird, R. (author)
- Bouvier, A. (author)
- Buckley, J. H. (author)
- Bugaev, V. (author)
- Cesarini, A. (author)
- Ciupik, L. (author)
- Connolly, M. P. (author)
- Cui, W. (author)
- Dumm, J. (author)
- Errando, M. (author)
- Falcone, A. (author)
- Federici, S. (author)
- Feng, Q. (author)
- Finley, J. P. (author)
- Fortin, P. (author)
- Fortson, L. (author)
- Furniss, A. (author)
- Galante, N. (author)
- Gérard, L. (author)
- Gillanders, G. H. (author)
- Griffin, S. (author)
- Grube, J. (author)
- Gyuk, G. (author)
- Hanna, D. (author)
- Holder, J. (author)
- Hughes, G. (author)
- Humensky, T. B. (author)
- Kaaret, P. (author)
- Kertzman, M. (author)
- Khassen, Y. (author)
- Kieda, D. (author)
- Krawczynski, H. (author)
- Krennrich, F. (author)
- Lang, M. J. (author)
- Madhavan, A. S. (author)
- Maier, G. (author)
- Majumdar, P. (author)
- McArthur, S. (author)
- McCann, A. (author)
- Moriarty, P. (author)
- Mukherjee, R. (author)
- Nieto, D. (author)
- O’Faoláin de Bhróithe, A. (author)
- Ong, R. A. (author)
- Orr, M. (author)
- Otte, A. N. (author)
- Park, N. (author)
- Perkins, J. S. (author)
- Pohl, M. (author)
- Popkow, A. (author)
- Prokoph, HeikeDESY, Germany(Swepub:lnu)hepraa (author)
- Quinn, J. (author)
- Ragan, K. (author)
- Reyes, L. C. (author)
- Reynolds, P. T. (author)
- Richards, G. T. (author)
- Roache, E. (author)
- Saxon, D. B. (author)
- Sembroski, G. H. (author)
- Skole, C. (author)
- Smith, A. W. (author)
- Soares-Furtado, M. (author)
- Staszak, D. (author)
- Telezhinsky, I. (author)
- Te\v sić, G. (author)
- Theiling, M. (author)
- Varlotta, A. (author)
- Vassiliev, V. V. (author)
- Vincent, S. (author)
- Wakely, S. P. (author)
- Weekes, T. C. (author)
- Weinstein, A. (author)
- Welsing, R. (author)
- Williams, D. A. (author)
- Zitzer, B. (author)
- Collaboration, V E R I T A S (author)
- Böttcher, M. (author)
- Fumagalli, M. (author)
- Jadhav, J. (author)
- DESY, Germany (creator_code:org_t)
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