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- Ackermann, M. (author)
Multiwavelength observations of GRB 110731A : GeV emission from onset to afterglow
- Article/chapterEnglish2013
Publisher, publication year, extent ...
- 2013
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-118325
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-118325URI
- https://doi.org/10.1088/0004-637X/763/2/71DOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-161706URI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- QC 20130215
- 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.
Subject headings and genre
- NATURVETENSKAP Fysik hsv//swe
- NATURAL SCIENCES Physical Sciences hsv//eng
- gamma-ray burst: individual (GRB110731A)
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- Ajello, M. (author)
- Asano, K. (author)
- Baldini, L. (author)
- Barbiellini, G. (author)
- Baring, M. G. (author)
- Bastieri, D. (author)
- Bellazzini, R. (author)
- Blandford, R. D. (author)
- Bonamente, E. (author)
- Borgland, A. W. (author)
- Bottacini, E. (author)
- Bregeon, J. (author)
- Brigida, M. (author)
- Bruel, P. (author)
- Buehler, R. (author)
- Buson, S. (author)
- Caliandro, G. A. (author)
- Cameron, R. A. (author)
- Caraveo, P. A. (author)
- Cecchi, C. (author)
- Charles, E. (author)
- Chaves, R. C. G. (author)
- Chekhtman, A. (author)
- Chiang, J. (author)
- Ciprini, S. (author)
- Claus, R. (author)
- Cohen-Tanugi, J. (author)
- Conrad, JanStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)conrad (author)
- Cutini, S. (author)
- D'Ammando, F. (author)
- De Angelis, A. (author)
- De Palma, F. (author)
- Dermer, C. D. (author)
- Do Couto E Silva, E. (author)
- Drell, P. S. (author)
- Drlica-Wagner, A. (author)
- Favuzzi, C. (author)
- Fegan, S. J. (author)
- Focke, W. B. (author)
- Franckowiak, A. (author)
- Fukazawa, Y. (author)
- Fusco, P. (author)
- Gargano, F. (author)
- Gasparrini, D. (author)
- Gehrels, N. (author)
- Giglietto, N. (author)
- Giordano, F. (author)
- Giroletti, M. (author)
- Glanzman, T. (author)
- Godfrey, G. (author)
- Granot, J. (author)
- Greiner, J. (author)
- Grenier, I. A. (author)
- Grove, J. E. (author)
- Guiriec, S. (author)
- Hadasch, D. (author)
- Hanabata, Y. (author)
- Hayashida, M. (author)
- Hays, E. (author)
- Hughes, R. E. (author)
- Jackson, Miranda S.KTH,Partikel- och astropartikelfysik(Swepub:kth)u1k3ikhm (author)
- Jogler, T. (author)
- Jóhannesson, G. (author)
- Johnson, A. S. (author)
- Knödlseder, J. (author)
- Kocevski, D. (author)
- Kuss, M. (author)
- Lande, J. (author)
- Larsson, StefanStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Institutionen för astronomi(Swepub:su)slars (author)
- Latronico, L. (author)
- Longo, F. (author)
- Loparco, F. (author)
- Lovellette, M. N. (author)
- Lubrano, P. (author)
- Mazziotta, M. N. (author)
- McEnery, J. E. (author)
- Mehault, J. (author)
- Mészáros, P. (author)
- Michelson, P. F. (author)
- Mitthumsiri, W. (author)
- Mizuno, T. (author)
- Monte, C. (author)
- Moretti, ElenaKTH,Partikel- och astropartikelfysik(Swepub:kth)u1t69eg4 (author)
- Moretti, ElenaKTH,Partikel- och astropartikelfysik(Swepub:kth)u1t69eg4 (author)
- Morselli, A. (author)
- Moskalenko, I. V. (author)
- Murgia, S. (author)
- Naumann-Godo, M. (author)
- Norris, J. P. (author)
- Nuss, E. (author)
- Nymark, TanjaKTH,Fysik(Swepub:kth)u14p8rnp (author)
- Ohno, M. (author)
- Ohsugi, T. (author)
- Omodei, N. (author)
- Orienti, M. (author)
- Orlando, E. (author)
- Paneque, D. (author)
- Perkins, J. S. (author)
- Pesce-Rollins, M. (author)
- Piron, F. (author)
- Pivato, G. (author)
- Racusin, J. L. (author)
- Rainò, S. (author)
- Rando, R. (author)
- Razzano, M. (author)
- Razzaque, S. (author)
- Reimer, A. (author)
- Reimer, O. (author)
- Romoli, C. (author)
- Roth, M. (author)
- Ryde, FelixKTH,Partikel- och astropartikelfysik(Swepub:kth)u1tlyg6w (author)
- Sanchez, D. A. (author)
- Sgrò, C. (author)
- Siskind, E. J. (author)
- Sonbas, E. (author)
- Spinelli, P. (author)
- Stamatikos, M. (author)
- Takahashi, H. (author)
- Tanaka, T. (author)
- Thayer, J. G. (author)
- Thayer, J. B. (author)
- Tibaldo, L. (author)
- Tinivella, M. (author)
- Tosti, G. (author)
- Troja, E. (author)
- Usher, T. L. (author)
- Vandenbroucke, J. (author)
- Vasileiou, V. (author)
- Vianello, G. (author)
- Vitale, V. (author)
- Waite, A. P. (author)
- Winer, B. L. (author)
- Wood, K. S. (author)
- Yang, ZhaoyuStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)zhaoyu (author)
- Gruber, D. (author)
- Bhat, P. N. (author)
- Bissaldi, E. (author)
- Briggs, M. S. (author)
- Burgess, J. M. (author)
- Connaughton, V. (author)
- Foley, S. (author)
- Kippen, R. M. (author)
- Kouveliotou, C. (author)
- McBreen, S. (author)
- McGlynn, S. (author)
- Paciesas, W. S. (author)
- Pelassa, V. (author)
- Preece, R. (author)
- Rau, A. (author)
- Van Der Horst, A. J. (author)
- Von Kienlin, A. (author)
- Kann, D. A. (author)
- Filgas, R. (author)
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- Fukui, A. (author)
- Sako, T. (author)
- Tristram, P. J. (author)
- Oates, S. R. (author)
- Ukwatta, T. N. (author)
- Littlejohns, O. (author)
- Stockholms universitetFysikum (creator_code:org_t)
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- In:Astrophysical Journal763:2, s. 71-0004-637X1538-4357
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