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Multiwavelength observations of GRB 110731A : GeV emission from onset to afterglow
- Article/chapterEnglish2013
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LIBRIS-ID:oai:DiVA.org:kth-118325
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-118325URI
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https://doi.org/10.1088/0004-637X/763/2/71DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-161706URI
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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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QC 20130215
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We report on the multiwavelength observations of the bright, long gamma-ray burst GRB 110731A, by the Fermi and Swift observatories, and by the MOA and GROND optical telescopes. The analysis of the prompt phase reveals that GRB 110731A shares many features with bright Large Area Telescope bursts observed by Fermi during the first three years on-orbit: a light curve with short time variability across the whole energy range during the prompt phase, delayed onset of the emission above 100 MeV, extra power-law component and temporally extended high-energy emission. In addition, this is the first GRB for which simultaneous GeV, X-ray, and optical data are available over multiple epochs beginning just after the trigger time and extending for more than 800 s, allowing temporal and spectral analysis in different epochs that favor emission from the forward shock in a wind-type medium. The observed temporally extended GeV emission is most likely part of the high-energy end of the afterglow emission. Both the single-zone pair transparency constraint for the prompt signal and the spectral and temporal analysis of the forward-shock afterglow emission independently lead to an estimate of the bulk Lorentz factor of the jet Γ ∼ 500-550.
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Ajello, M.
(author)
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Asano, K.
(author)
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Baldini, L.
(author)
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Barbiellini, G.
(author)
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Baring, M. G.
(author)
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Bastieri, D.
(author)
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Bellazzini, R.
(author)
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Blandford, R. D.
(author)
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Bonamente, E.
(author)
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Borgland, A. W.
(author)
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Bottacini, E.
(author)
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Bregeon, J.
(author)
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Brigida, M.
(author)
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Bruel, P.
(author)
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Buehler, R.
(author)
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Buson, S.
(author)
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Caliandro, G. A.
(author)
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Cameron, R. A.
(author)
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Caraveo, P. A.
(author)
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Cecchi, C.
(author)
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Charles, E.
(author)
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Chaves, R. C. G.
(author)
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Chekhtman, A.
(author)
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Chiang, J.
(author)
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Ciprini, S.
(author)
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Claus, R.
(author)
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Cohen-Tanugi, J.
(author)
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Conrad, JanStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)conrad
(author)
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Cutini, S.
(author)
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D'Ammando, F.
(author)
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De Angelis, A.
(author)
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De Palma, F.
(author)
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Dermer, C. D.
(author)
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Do Couto E Silva, E.
(author)
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Drell, P. S.
(author)
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Drlica-Wagner, A.
(author)
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Favuzzi, C.
(author)
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Fegan, S. J.
(author)
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Focke, W. B.
(author)
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Franckowiak, A.
(author)
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Fukazawa, Y.
(author)
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Fusco, P.
(author)
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Gargano, F.
(author)
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Gasparrini, D.
(author)
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Gehrels, N.
(author)
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Giglietto, N.
(author)
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Giordano, F.
(author)
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Giroletti, M.
(author)
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Glanzman, T.
(author)
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Godfrey, G.
(author)
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Granot, J.
(author)
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Greiner, J.
(author)
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Grenier, I. A.
(author)
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Grove, J. E.
(author)
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Guiriec, S.
(author)
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Hadasch, D.
(author)
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Hanabata, Y.
(author)
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Hayashida, M.
(author)
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Hays, E.
(author)
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Hughes, R. E.
(author)
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Jackson, Miranda S.KTH,Partikel- och astropartikelfysik(Swepub:kth)u1k3ikhm
(author)
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Jogler, T.
(author)
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Jóhannesson, G.
(author)
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Johnson, A. S.
(author)
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Knödlseder, J.
(author)
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Kocevski, D.
(author)
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Kuss, M.
(author)
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Lande, J.
(author)
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Larsson, StefanStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Institutionen för astronomi(Swepub:su)slars
(author)
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Latronico, L.
(author)
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Longo, F.
(author)
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Loparco, F.
(author)
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Lovellette, M. N.
(author)
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Lubrano, P.
(author)
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Mazziotta, M. N.
(author)
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McEnery, J. E.
(author)
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Mehault, J.
(author)
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Mészáros, P.
(author)
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Michelson, P. F.
(author)
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Mitthumsiri, W.
(author)
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Mizuno, T.
(author)
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Monte, C.
(author)
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Moretti, ElenaKTH,Partikel- och astropartikelfysik(Swepub:kth)u1t69eg4
(author)
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Moretti, ElenaKTH,Partikel- och astropartikelfysik(Swepub:kth)u1t69eg4
(author)
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Morselli, A.
(author)
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Moskalenko, I. V.
(author)
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Murgia, S.
(author)
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Naumann-Godo, M.
(author)
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Norris, J. P.
(author)
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Nuss, E.
(author)
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Nymark, TanjaKTH,Fysik(Swepub:kth)u14p8rnp
(author)
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Ohno, M.
(author)
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Ohsugi, T.
(author)
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Omodei, N.
(author)
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Orienti, M.
(author)
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Orlando, E.
(author)
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Paneque, D.
(author)
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Perkins, J. S.
(author)
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Pesce-Rollins, M.
(author)
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Piron, F.
(author)
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Pivato, G.
(author)
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Racusin, J. L.
(author)
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Rainò, S.
(author)
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Rando, R.
(author)
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Razzano, M.
(author)
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Razzaque, S.
(author)
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Reimer, A.
(author)
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Reimer, O.
(author)
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Romoli, C.
(author)
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Roth, M.
(author)
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Ryde, FelixKTH,Partikel- och astropartikelfysik(Swepub:kth)u1tlyg6w
(author)
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Sanchez, D. A.
(author)
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Sgrò, C.
(author)
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Siskind, E. J.
(author)
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Sonbas, E.
(author)
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Spinelli, P.
(author)
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Stamatikos, M.
(author)
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Takahashi, H.
(author)
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Tanaka, T.
(author)
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Thayer, J. G.
(author)
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Thayer, J. B.
(author)
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Tibaldo, L.
(author)
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Tinivella, M.
(author)
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Tosti, G.
(author)
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Troja, E.
(author)
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Usher, T. L.
(author)
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Vandenbroucke, J.
(author)
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Vasileiou, V.
(author)
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Vianello, G.
(author)
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Vitale, V.
(author)
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Waite, A. P.
(author)
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Winer, B. L.
(author)
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Wood, K. S.
(author)
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Yang, ZhaoyuStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)zhaoyu
(author)
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Gruber, D.
(author)
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Bhat, P. N.
(author)
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Bissaldi, E.
(author)
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Briggs, M. S.
(author)
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Burgess, J. M.
(author)
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Connaughton, V.
(author)
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Foley, S.
(author)
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Kippen, R. M.
(author)
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Kouveliotou, C.
(author)
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McBreen, S.
(author)
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McGlynn, S.
(author)
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Paciesas, W. S.
(author)
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Pelassa, V.
(author)
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Preece, R.
(author)
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Rau, A.
(author)
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Van Der Horst, A. J.
(author)
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Von Kienlin, A.
(author)
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Kann, D. A.
(author)
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Filgas, R.
(author)
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Klose, S.
(author)
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Krühler, T.
(author)
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Fukui, A.
(author)
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Sako, T.
(author)
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Tristram, P. J.
(author)
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Oates, S. R.
(author)
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Ukwatta, T. N.
(author)
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Littlejohns, O.
(author)
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Stockholms universitetFysikum
(creator_code:org_t)
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In:Astrophysical Journal763:2, s. 71-0004-637X1538-4357
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Ackermann, M.
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Ajello, M.
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Asano, K.
-
Baldini, L.
-
Barbiellini, G.
-
Baring, M. G.
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Bastieri, D.
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Bellazzini, R.
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Blandford, R. D.
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Bonamente, E.
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Borgland, A. W.
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Bottacini, E.
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Bregeon, J.
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Brigida, M.
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Bruel, P.
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Buehler, R.
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Buson, S.
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Caliandro, G. A.
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Cameron, R. A.
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Caraveo, P. A.
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Cecchi, C.
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Charles, E.
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Chaves, R. C. G.
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Chekhtman, A.
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Chiang, J.
-
Ciprini, S.
-
Claus, R.
-
Cohen-Tanugi, J.
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Conrad, Jan
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Cutini, S.
-
D'Ammando, F.
-
De Angelis, A.
-
De Palma, F.
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Dermer, C. D.
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Do Couto E Silva ...
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Drell, P. S.
-
Drlica-Wagner, A ...
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Favuzzi, C.
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Fegan, S. J.
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Focke, W. B.
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Franckowiak, A.
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Fukazawa, Y.
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Fusco, P.
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Gargano, F.
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Gasparrini, D.
-
Gehrels, N.
-
Giglietto, N.
-
Giordano, F.
-
Giroletti, M.
-
Glanzman, T.
-
Godfrey, G.
-
Granot, J.
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Greiner, J.
-
Grenier, I. A.
-
Grove, J. E.
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Guiriec, S.
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Hadasch, D.
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Hanabata, Y.
-
Hayashida, M.
-
Hays, E.
-
Hughes, R. E.
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Jackson, Miranda ...
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Jogler, T.
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Jóhannesson, G.
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Johnson, A. S.
-
Knödlseder, J.
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Kocevski, D.
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Kuss, M.
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Lande, J.
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Larsson, Stefan
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Latronico, L.
-
Longo, F.
-
Loparco, F.
-
Lovellette, M. N ...
-
Lubrano, P.
-
Mazziotta, M. N.
-
McEnery, J. E.
-
Mehault, J.
-
Mészáros, P.
-
Michelson, P. F.
-
Mitthumsiri, W.
-
Mizuno, T.
-
Monte, C.
-
Moretti, Elena
-
Morselli, A.
-
Moskalenko, I. V ...
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Murgia, S.
-
Naumann-Godo, M.
-
Norris, J. P.
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Nuss, E.
-
Nymark, Tanja
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Ohno, M.
-
Ohsugi, T.
-
Omodei, N.
-
Orienti, M.
-
Orlando, E.
-
Paneque, D.
-
Perkins, J. S.
-
Pesce-Rollins, M ...
-
Piron, F.
-
Pivato, G.
-
Racusin, J. L.
-
Rainò, S.
-
Rando, R.
-
Razzano, M.
-
Razzaque, S.
-
Reimer, A.
-
Reimer, O.
-
Romoli, C.
-
Roth, M.
-
Ryde, Felix
-
Sanchez, D. A.
-
Sgrò, C.
-
Siskind, E. J.
-
Sonbas, E.
-
Spinelli, P.
-
Stamatikos, M.
-
Takahashi, H.
-
Tanaka, T.
-
Thayer, J. G.
-
Thayer, J. B.
-
Tibaldo, L.
-
Tinivella, M.
-
Tosti, G.
-
Troja, E.
-
Usher, T. L.
-
Vandenbroucke, J ...
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Vasileiou, V.
-
Vianello, G.
-
Vitale, V.
-
Waite, A. P.
-
Winer, B. L.
-
Wood, K. S.
-
Yang, Zhaoyu
-
Gruber, D.
-
Bhat, P. N.
-
Bissaldi, E.
-
Briggs, M. S.
-
Burgess, J. M.
-
Connaughton, V.
-
Foley, S.
-
Kippen, R. M.
-
Kouveliotou, C.
-
McBreen, S.
-
McGlynn, S.
-
Paciesas, W. S.
-
Pelassa, V.
-
Preece, R.
-
Rau, A.
-
Van Der Horst, A ...
-
Von Kienlin, A.
-
Kann, D. A.
-
Filgas, R.
-
Klose, S.
-
Krühler, T.
-
Fukui, A.
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Sako, T.
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Tristram, P. J.
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Oates, S. R.
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Ukwatta, T. N.
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Littlejohns, O.
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