Rest-frame properties of 32 gamma-ray bursts observed by the Fermi Gamma-ray Burst Monitor

D. Gruber; J. Greiner; A. von Kienlin; A. Rau; M. S. Briggs; V. Connaughton; A. Goldstein; A. J. van der Horst; M. Nardini; P. N. Bhat; E. Bissaldi; J. M. Burgess; V. L. Chaplin; R. Diehl; G. J. Fishman; G. Fitzpatrick; S. Foley; M. H. Gibby; M. M. Giles; S. Guiriec; R. M. Kippen; C. Kouveliotou; L. Lin; S. McBreen; C. A. Meegan; F. Olivares E.; W. S. Paciesas; R. D. Preece; D. Tierney; C. Wilson-Hodge

doi:10.1051/0004-6361/201116953

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Volume 531 (July 2011)

A&A, 531 (2011) A20

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Fig. 3

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Rest-frame distribution of E_p for 4 short (hatched histogram) and 26 long (empty histogram) GBM-GRBs. For two GRBs (GRB 090519A, GRB 080928) a simple PL model fits the data best, thus not providing an E_p value. The complete distribution has mean and median values of 1.1 MeV and 750 keV, respectively. A log-normal fit to the sample of long GRBs (dashed line) peaks at ~800 keV and has a FWHM = 0.93 in log-space.

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