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@ARTICLE{Ackermann:292777,
      author       = {Ackermann, Markus and Arcavi, I. and Baldini, L. and
                      Ballet, J. and Barbiellini, G. and Bastieri, D. and
                      Bellazzini, R. and Bissaldi, E. and Blandford, R. D. and
                      Bonino, R. and Bottacini, E. and Brandt, T. J. and Bregeon,
                      J. and Bruel, P. and Buehler, R. and Buson, S. and
                      Caliandro, G. A. and Cameron, R. A. and Caragiulo, M. and
                      Caraveo, P. A. and Cavazzuti, E. and Cecchi, C. and Charles,
                      E. and Chekhtman, A. and Chiang, J. and Chiaro, G. and
                      Ciprini, S. and Claus, R. and Cohen-Tanugi, J. and Cutini,
                      S. and D’Ammando, F. and Angelis, A. de and Palma, F. de
                      and Desiante, R. and Venere, L. Di and Drell, P. S. and
                      Favuzzi, C. and Fegan, S. J. and Franckowiak, A. and Funk,
                      S. and Fusco, P. and Gal-Yam, A. and Gargano, F. and
                      Gasparrini, D. and Giglietto, N. and Giordano, F. and
                      Giroletti, M. and Glanzman, T. and Godfrey, G. and Grenier,
                      I. A. and Grove, J. E. and Guiriec, S. and Harding, A. K.
                      and Hayashi, K. and Hewitt, J. W. and Hill, A. B. and Horan,
                      D. and Jogler, T. and Jóhannesson, G. and Kocevski, D. and
                      Kuss, M. and Larsson, S. and Lashner, J. and Latronico, L.
                      and Li, J. and Li, L. and Longo, F. and Loparco, F. and
                      Lovellette, M. N. and Lubrano, P. and Malyshev, D. and
                      Mayer, Michael and Mazziotta, M. N. and McEnery, J. E. and
                      Michelson, P. F. and Mizuno, T. and Monzani, M. E. and
                      Morselli, A. and Murase, K. and Nugent, P. and Nuss, E. and
                      Ofek, E. and Ohsugi, T. and Orienti, M. and Orlando, E. and
                      Ormes, J. F. and Paneque, D. and Pesce-Rollins, M. and
                      Piron, F. and Pivato, G. and Rainò, S. and Rando, R. and
                      Razzano, M. and Reimer, A. and Reimer, O. and Schulz, A. and
                      Sgrò, C. and Siskind, E. J. and Spada, F. and Spandre, G.
                      and Spinelli, P. and Suson, D. J. and Takahashi, H. and
                      Thayer, J. B. and Tibaldo, L. and Torres, D. F. and Troja,
                      E. and Vianello, G. and Werner, M. and Wood, K. S. and Wood,
                      M.},
      title        = {{S}earch for {E}arly {G}amma-{R}ay {P}roduction in
                      {S}upernovae {L}ocated in a {D}ense {C}ircumstellar {M}edium
                      with the {F}ermi {L}at},
      journal      = {The astrophysical journal / 1},
      volume       = {807},
      number       = {2},
      issn         = {1538-4357},
      address      = {Chicago, Ill. [u.a.]},
      publisher    = {Univ.11032},
      reportid     = {PUBDB-2016-00030},
      pages        = {169 -},
      year         = {2015},
      note         = {(c) The American Astronomical Society},
      abstract     = {Supernovae (SNe) exploding in a dense circumstellar medium
                      (CSM) are hypothesized to accelerate cosmic rays in
                      collisionless shocks and emit GeV γ-rays and TeV neutrinos
                      on a timescale of several months. We perform the first
                      systematic search for γ-ray emission in Fermi Large Area
                      Telescope data in the energy range from $100\;\mathrm{MeV}$
                      to $300\;\mathrm{GeV}$ from the ensemble of 147 SNe Type IIn
                      exploding in a dense CSM. We search for a γ-ray excess at
                      each SNe location in a one-year time window. In order to
                      enhance a possible weak signal, we simultaneously study the
                      closest and optically brightest sources of our sample in a
                      joint-likelihood analysis in three different time windows (1
                      year, 6 months, and 3 months). For the most promising source
                      of the sample, SN 2010jl (PTF 10aaxf), we repeat the
                      analysis with an extended time window lasting 4.5 years. We
                      do not find a significant excess in γ-rays for any
                      individual source nor for the combined sources and provide
                      model-independent flux upper limits for both cases. In
                      addition, we derive limits on the γ-ray luminosity and the
                      ratio of γ-ray-to-optical luminosity ratio as a function of
                      the index of the proton injection spectrum assuming a
                      generic γ-ray production model. Furthermore, we present
                      detailed flux predictions based on multi-wavelength
                      observations and the corresponding flux upper limit at a
                      95\% confidence level (CL) for the source SN 2010jl (PTF
                      10aaxf).},
      cin          = {ZEU-EXP/AT},
      ddc          = {520},
      cid          = {$I:(DE-H253)ZEU-EXP_AT-20120731$},
      pnm          = {613 - Matter and Radiation from the Universe (POF3-613) /
                      NONTHERMTRANSIENTS - Understanding the variable and
                      transient non-thermal emission of Galactic sources (275861)
                      / COSMICEXPLOSIONS - The nature of cosmic explosions
                      (307260)},
      pid          = {G:(DE-HGF)POF3-613 / G:(EU-Grant)275861 /
                      G:(EU-Grant)307260},
      experiment   = {EXP:(DE-MLZ)External-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000358967000055},
      doi          = {10.1088/0004-637X/807/2/169},
      url          = {https://bib-pubdb1.desy.de/record/292777},
}