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- Axelsson, MagnusKTH,Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Royal Institute of Technology, Sweden,Partikel- och astropartikelfysik (author)
GRB110721A : AN EXTREME PEAK ENERGY AND SIGNATURES OF THE PHOTOSPHERE
- Article/chapterEnglish2012
Publisher, publication year, extent ...
- 2012
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:su-81833
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-81833URI
- https://doi.org/10.1088/2041-8205/757/2/L31DOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-102053URI
Supplementary language notes
- Language:English
- Summary in:English
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- SwePubSwePub
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Notes
- AuthorCount:111;
- QC 20121015. Author count: 111. Updated from manuscript to article in journal.
- GRB110721A was observed by the Fermi Gamma-ray Space Telescope using its two instruments, the Large Area Telescope (LAT) and the Gamma-ray Burst Monitor (GBM). The burst consisted of one major emission episode which lasted for similar to 24.5 s (in the GBM) and had a peak flux of (5.7 +/- 0.2) x 10(-5) erg s(-1) cm(-2). The time-resolved emission spectrum is best modeled with a combination of a Band function and a blackbody spectrum. The peak energy of the Band component was initially 15 +/- 2 MeV, which is the highest value ever detected in a GRB. This measurement was made possible by combining GBM/BGO data with LAT Low Energy events to achieve continuous 10-100 MeV coverage. The peak energy later decreased as a power law in time with an index of -1.89 +/- 0.10. The temperature of the blackbody component also decreased, starting from similar to 80 keV, and the decay showed a significant break after similar to 2 s. The spectrum provides strong constraints on the standard synchrotron model, indicating that alternative mechanisms may give rise to the emission at these energies.
Subject headings and genre
- NATURVETENSKAP Fysik hsv//swe
- NATURAL SCIENCES Physical Sciences hsv//eng
- NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
- NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
- gamma-ray burst: general
- gamma-ray burst: individual (GRB110721A)
- radiation mechanisms: thermal
Added entries (persons, corporate bodies, meetings, titles ...)
- Baldini, L. (author)
- Barbiellini, G. (author)
- Baring, M. G. (author)
- Bellazzini, R. (author)
- Bregeon, J. (author)
- Brigida, M. (author)
- Bruel, P. (author)
- Buehler, R. (author)
- Caliandro, G. A. (author)
- Cameron, R. A. (author)
- Caraveo, P. A. (author)
- Cecchi, C. (author)
- Chaves, R. C. G. (author)
- Chekhtman, A. (author)
- Chiang, J. (author)
- Claus, R. (author)
- Conrad, JanStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Royal Swedish Academy of Sciences, Sweden(Swepub:su)conrad (author)
- Cutini, S. (author)
- D'Ammando, F. (author)
- de Palma, F. (author)
- Dermer, C. D. (author)
- do Couto e Silva, E. (author)
- Drell, P. S. (author)
- Favuzzi, C. (author)
- Fegan, S. J. (author)
- Ferrara, E. C. (author)
- Focke, W. B. (author)
- Fukazawa, Y. (author)
- Fusco, P. (author)
- Gargano, F. (author)
- Gasparrini, D. (author)
- Gehrels, N. (author)
- Germani, S. (author)
- Giglietto, N. (author)
- Giroletti, M. (author)
- Godfrey, G. (author)
- Guiriec, S. (author)
- Hadasch, D. (author)
- Hanabata, Y. (author)
- Hayashida, M. (author)
- Hou, X. (author)
- Iyyani, ShabnamStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Royal Institute of Technology Sweden(Swepub:su)siyya (author)
- Jackson, MirandaKTH,Partikel- och astropartikelfysik(Swepub:kth)u1k3ikhm (author)
- Kocevski, D. (author)
- Kuss, M. (author)
- Larsson, J.Stockholms universitet,Oskar Klein-centrum för kosmopartikelfysik (OKC),Institutionen för astronomi (author)
- Larsson, StefanStockholms universitet,Institutionen för astronomi,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)slars (author)
- Longo, F. (author)
- Loparco, F. (author)
- Lundman, ChristofferKTH,Partikel- och astropartikelfysik(Swepub:kth)u1q20wv4 (author)
- Mazziotta, M. N. (author)
- McEnery, J. E. (author)
- Mizuno, T. (author)
- Moretti, ElenaKTH,Partikel- och astropartikelfysik(Swepub:kth)u1t69eg4 (author)
- Moretti, E. (author)
- Morselli, A. (author)
- Murgia, S. (author)
- Nuss, E. (author)
- Nymark, TanjaKTH,Partikel- och astropartikelfysik(Swepub:kth)u14p8rnp (author)
- Ohno, M. (author)
- Omodei, N. (author)
- Pesce-Rollins, M. (author)
- Piron, F. (author)
- Pivato, G. (author)
- Racusin, J. L. (author)
- Raino, S. (author)
- Razzano, M. (author)
- Razzaque, S. (author)
- Reimer, A. (author)
- Roth, M. (author)
- Ryde, F. (author)
- Sanchez, D. A. (author)
- Sgro, C. (author)
- Siskind, E. J. (author)
- Spandre, G. (author)
- Spinelli, P. (author)
- Stamatikos, M. (author)
- Tibaldo, L. (author)
- Tinivella, M. (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)
- Burgess, J. M. (author)
- Bhat, P. N. (author)
- Bissaldi, E. (author)
- Briggs, M. S. (author)
- Connaughton, V. (author)
- Fishman, G. (author)
- Fitzpatrick, G. (author)
- Foley, S. (author)
- Gruber, D. (author)
- Kippen, R. M. (author)
- Kouveliotou, C. (author)
- Jenke, P. (author)
- McBreen, S. (author)
- McGlynn, S. (author)
- Meegan, C. (author)
- Paciesas, W. S. (author)
- Pelassa, V. (author)
- Preece, R. (author)
- Tierney, D. (author)
- von Kienlin, A. (author)
- Wilson-Hodge, C. (author)
- Xiong, S. (author)
- Pe'er, A. (author)
- Stockholms universitetInstitutionen för astronomi (creator_code:org_t)
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- Brigida, M.
- Bruel, P.
- Buehler, R.
- Caliandro, G. A.
- Cameron, R. A.
- Caraveo, P. A.
- Cecchi, C.
- Chaves, R. C. G.
- Chekhtman, A.
- Chiang, J.
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- Conrad, Jan
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- Gargano, F.
- Gasparrini, D.
- Gehrels, N.
- Germani, S.
- Giglietto, N.
- Giroletti, M.
- Godfrey, G.
- Guiriec, S.
- Hadasch, D.
- Hanabata, Y.
- Hayashida, M.
- Hou, X.
- Iyyani, Shabnam
- Jackson, Miranda
- Kocevski, D.
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