Year: 2003
Type: article
Abstract: We present a spectral analysis of 35 GRBs detected with the HETE-2 gamma-ray detectors (the FREGATE instrument) in the energy range 7–400 keV. The GRB sample analyzed is made of GRBs localized with the Wide Field X-ray Monitor onboard HETE-2 or with the GRB Interplanetary Network. We derive the spectral parameters of the time-integrated spectra, and present the distribution of the low-energy photon index, alpha, and of the peak energy, . We then discuss the existence and nature of the recently discovered X-Ray Flashes and their relationship with classical GRBs.
Source: Astronomy and Astrophysics
Authors: C. Barraud, J.-F. Olive, J. P. Lestrade, J.-L. Atteia, K. Hurley, G. Ricker, D. Q. Lamb, N. Kawai, M. Boer, J.-P. Dezalay, G. Pizzichini, R. Vanderspek, G. Crew, J. Doty, G. Monnelly, J. Villasenor, N. Butler, A. Levine, A. Yoshida, Y. Shirasaki, T. Sakamoto, T. Tamagawa, K. Torii, M. Matsuoka, E. E. Fenimore, M. Galassi, T. Tavenner, T. Q. Donaghy, C. Graziani, J. G. Jernigan
Institutions: Observatoire Midi-Pyrénées, Space Sciences Laboratory, University of California, Berkeley, Massachusetts Institute of Technology, University of Chicago, Tokyo Institute of Technology, RIKEN, National Research Council, Aoyama Gakuin University, National Astronomical Observatory of Japan, Los Alamos National Laboratory, Tsukuba Space Center
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2011104681