%0 Journal Article
%A Ackermann, Markus
%A Arcavi, I.
%A Baldini, L.
%A Ballet, J.
%A Barbiellini, G.
%A Bastieri, D.
%A Bellazzini, R.
%A Bissaldi, E.
%A Blandford, R. D.
%A Bonino, R.
%A Bottacini, E.
%A Brandt, T. J.
%A Bregeon, J.
%A Bruel, P.
%A Buehler, R.
%A Buson, S.
%A Caliandro, G. A.
%A Cameron, R. A.
%A Caragiulo, M.
%A Caraveo, P. A.
%A Cavazzuti, E.
%A Cecchi, C.
%A Charles, E.
%A Chekhtman, A.
%A Chiang, J.
%A Chiaro, G.
%A Ciprini, S.
%A Claus, R.
%A Cohen-Tanugi, J.
%A Cutini, S.
%A D’Ammando, F.
%A Angelis, A. de
%A Palma, F. de
%A Desiante, R.
%A Venere, L. Di
%A Drell, P. S.
%A Favuzzi, C.
%A Fegan, S. J.
%A Franckowiak, A.
%A Funk, S.
%A Fusco, P.
%A Gal-Yam, A.
%A Gargano, F.
%A Gasparrini, D.
%A Giglietto, N.
%A Giordano, F.
%A Giroletti, M.
%A Glanzman, T.
%A Godfrey, G.
%A Grenier, I. A.
%A Grove, J. E.
%A Guiriec, S.
%A Harding, A. K.
%A Hayashi, K.
%A Hewitt, J. W.
%A Hill, A. B.
%A Horan, D.
%A Jogler, T.
%A Jóhannesson, G.
%A Kocevski, D.
%A Kuss, M.
%A Larsson, S.
%A Lashner, J.
%A Latronico, L.
%A Li, J.
%A Li, L.
%A Longo, F.
%A Loparco, F.
%A Lovellette, M. N.
%A Lubrano, P.
%A Malyshev, D.
%A Mayer, Michael
%A Mazziotta, M. N.
%A McEnery, J. E.
%A Michelson, P. F.
%A Mizuno, T.
%A Monzani, M. E.
%A Morselli, A.
%A Murase, K.
%A Nugent, P.
%A Nuss, E.
%A Ofek, E.
%A Ohsugi, T.
%A Orienti, M.
%A Orlando, E.
%A Ormes, J. F.
%A Paneque, D.
%A Pesce-Rollins, M.
%A Piron, F.
%A Pivato, G.
%A Rainò, S.
%A Rando, R.
%A Razzano, M.
%A Reimer, A.
%A Reimer, O.
%A Schulz, A.
%A Sgrò, C.
%A Siskind, E. J.
%A Spada, F.
%A Spandre, G.
%A Spinelli, P.
%A Suson, D. J.
%A Takahashi, H.
%A Thayer, J. B.
%A Tibaldo, L.
%A Torres, D. F.
%A Troja, E.
%A Vianello, G.
%A Werner, M.
%A Wood, K. S.
%A Wood, M.
%T Search for Early Gamma-Ray Production in Supernovae Located in a Dense Circumstellar Medium with the Fermi Lat
%J The astrophysical journal / 1
%V 807
%N 2
%@ 1538-4357
%C Chicago, Ill. [u.a.]
%I Univ.11032
%M PUBDB-2016-00030
%P 169 -
%D 2015
%Z (c) The American Astronomical Society
%X 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  MeV to 300  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
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000358967000055
%R 10.1088/0004-637X/807/2/169
%U https://bib-pubdb1.desy.de/record/292777