Spectral analysis of 35 GRBs/XRFs observed with HETE-2/FREGATE

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

doi:10.1051/0004-6361:20030074

Spectral analysis of 35 GRBs/XRFs observed with HETE-2/FREGATE

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. ShirasakiT. Sakamoto, T. Tamagawa, K. Torii, M. Matsuoka, E. E. Fenimore, M. Galassi, T. Tavenner, T. Q. Donaghy, C. Graziani, J. G. Jernigan

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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, E_p. We then discuss the existence and nature of the recently discovered X-Ray Flashes and their relationship with classical GRBs.

Original language	English (US)
Pages (from-to)	1021-1030
Number of pages	10
Journal	Astronomy and Astrophysics
Volume	400
Issue number	3
DOIs	https://doi.org/10.1051/0004-6361:20030074
State	Published - 2003
Externally published	Yes

Keywords

Gamma-rays: bursts

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1051/0004-6361:20030074

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Barraud, C., Olive, J. F., Lestrade, J. P., Atteia, J. L., Hurley, K., Ricker, G., Lamb, D. Q., Kawai, N., Boer, M., Dezalay, J. P., Pizzichini, G., Vanderspek, R., Crew, G., Doty, J., Monnelly, G., Villasenor, J., Butler, N., Levine, A., Yoshida, A., ... Jernigan, J. G. (2003). Spectral analysis of 35 GRBs/XRFs observed with HETE-2/FREGATE. Astronomy and Astrophysics, 400(3), 1021-1030. https://doi.org/10.1051/0004-6361:20030074

Barraud, C, Olive, JF, Lestrade, JP, Atteia, JL, Hurley, K, Ricker, G, Lamb, DQ, Kawai, N, Boer, M, Dezalay, JP, Pizzichini, G, Vanderspek, R, Crew, G, Doty, J, Monnelly, G, Villasenor, J, Butler, N, Levine, A, Yoshida, A, Shirasaki, Y, Sakamoto, T, Tamagawa, T, Torii, K, Matsuoka, M, Fenimore, EE, Galassi, M, Tavenner, T, Donaghy, TQ, Graziani, C & Jernigan, JG 2003, 'Spectral analysis of 35 GRBs/XRFs observed with HETE-2/FREGATE', Astronomy and Astrophysics, vol. 400, no. 3, pp. 1021-1030. https://doi.org/10.1051/0004-6361:20030074

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title = "Spectral analysis of 35 GRBs/XRFs observed with HETE-2/FREGATE",

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, Ep. We then discuss the existence and nature of the recently discovered X-Ray Flashes and their relationship with classical GRBs.",

keywords = "Gamma-rays: bursts",

author = "C. Barraud and Olive, {J. F.} and Lestrade, {J. P.} and Atteia, {J. L.} and K. Hurley and G. Ricker and Lamb, {D. Q.} and N. Kawai and M. Boer and Dezalay, {J. P.} and G. Pizzichini and R. Vanderspek and G. Crew and J. Doty and G. Monnelly and J. Villasenor and N. Butler and A. Levine and A. Yoshida and Y. Shirasaki and T. Sakamoto and T. Tamagawa and K. Torii and M. Matsuoka and Fenimore, {E. E.} and M. Galassi and T. Tavenner and Donaghy, {T. Q.} and C. Graziani and Jernigan, {J. G.}",

year = "2003",

doi = "10.1051/0004-6361:20030074",

language = "English (US)",

volume = "400",

pages = "1021--1030",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

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TY - JOUR

T1 - Spectral analysis of 35 GRBs/XRFs observed with HETE-2/FREGATE

AU - Barraud, C.

AU - Olive, J. F.

AU - Lestrade, J. P.

AU - Atteia, J. L.

AU - Hurley, K.

AU - Ricker, G.

AU - Lamb, D. Q.

AU - Kawai, N.

AU - Boer, M.

AU - Dezalay, J. P.

AU - Pizzichini, G.

AU - Vanderspek, R.

AU - Crew, G.

AU - Doty, J.

AU - Monnelly, G.

AU - Villasenor, J.

AU - Butler, N.

AU - Levine, A.

AU - Yoshida, A.

AU - Shirasaki, Y.

AU - Sakamoto, T.

AU - Tamagawa, T.

AU - Torii, K.

AU - Matsuoka, M.

AU - Fenimore, E. E.

AU - Galassi, M.

AU - Tavenner, T.

AU - Donaghy, T. Q.

AU - Graziani, C.

AU - Jernigan, J. G.

PY - 2003

Y1 - 2003

N2 - 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, Ep. We then discuss the existence and nature of the recently discovered X-Ray Flashes and their relationship with classical GRBs.

AB - 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, Ep. We then discuss the existence and nature of the recently discovered X-Ray Flashes and their relationship with classical GRBs.

KW - Gamma-rays: bursts

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U2 - 10.1051/0004-6361:20030074

DO - 10.1051/0004-6361:20030074

M3 - Article

AN - SCOPUS:0037341228

SN - 0004-6361

VL - 400

SP - 1021

EP - 1030

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 3

ER -

Spectral analysis of 35 GRBs/XRFs observed with HETE-2/FREGATE

Abstract

Keywords

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