HETE-2 localization and observations of the gamma-ray burst GRB 020813

Rie Sato, Takanori Sakamoto, Jun Kataoka, Atsumasa Yoshida, Motoko Suzuki, Junichi Kotoku, Yuji Urata, Yoshihisa Yamamoto, Makoto Arimoto, Toru Tamagawa, Yuji Shirasaki, Ken'ichi Torii, Masaru Matsuoka, Yujin Nakagawa, Toru Yamazaki, Kaoru Tanaka, Miki Maetou, Makoto Yamauchi, Kunio Takagishi, Donald Q. Lamb & 23 others Jean Luc Atteia, Roland Vanderspek, Carlo Graziani, Gregory Prigozhin, Joel Villasenor, J. Garrett Jernigan, Geoffrey B. Crew, Kevin Hurley, George R. Ricker, Stanford E. Woosley, Nat Butler, Al Levine, John P. Doty, Timothy Q. Donaghy, Edward E. Fenimore, Mark Galassi, Michel Boer, Jean Pascal Dezalay, Jean François Olive, Joao Braga, Ravi Manchanda, Graziella Pizzichini, Nobuyuki Kawai

研究成果: Article

4 引用 (Scopus)

抄録

A bright, long gamma-ray burst (GRB) was detected and localized by the instruments on board the High Energy Transient Explorer 2 satellite (HETE-2) at 02:44:19.17 UTC (9859.17 s UT) on 2002 August 13. The location was reported to the GRB Coordinates Network (GCN) about 4 min after the burst. In the prompt emission, the burst had a duration of approximately 125 s, and more than four peaks. We analyzed the time-resolved 2-400 keV energy spectra of the prompt emission of GRB 020813 using the Wide Field X-Ray Monitor (WXM) and the French Gamma Telescope (FREGATE) in detail. We found that the early part of the burst (17-52 s after the burst trigger) shows a depletion of low-energy photons below about 50 keV. It is difficult to explain the depletion by either synchrotron self-absorption or Comptonization. One possibility is that the low-energy depletion may be understood as a mixture of "jitter" radiation with the usual synchrotron radiation component.

元の言語English
ページ(範囲)1031-1039
ページ数9
ジャーナルPublications of the Astronomical Society of Japan
57
発行部数6
出版物ステータスPublished - 2005
外部発表Yes

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Explorer 2 satellite
gamma ray bursts
bursts
depletion
energy
self absorption
monitors
synchrotron radiation
synchrotrons
energy spectra
actuators
telescopes
vibration
photons
radiation
x rays

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

これを引用

Sato, R., Sakamoto, T., Kataoka, J., Yoshida, A., Suzuki, M., Kotoku, J., ... Kawai, N. (2005). HETE-2 localization and observations of the gamma-ray burst GRB 020813. Publications of the Astronomical Society of Japan, 57(6), 1031-1039.

HETE-2 localization and observations of the gamma-ray burst GRB 020813. / Sato, Rie; Sakamoto, Takanori; Kataoka, Jun; Yoshida, Atsumasa; Suzuki, Motoko; Kotoku, Junichi; Urata, Yuji; Yamamoto, Yoshihisa; Arimoto, Makoto; Tamagawa, Toru; Shirasaki, Yuji; Torii, Ken'ichi; Matsuoka, Masaru; Nakagawa, Yujin; Yamazaki, Toru; Tanaka, Kaoru; Maetou, Miki; Yamauchi, Makoto; Takagishi, Kunio; Lamb, Donald Q.; Atteia, Jean Luc; Vanderspek, Roland; Graziani, Carlo; Prigozhin, Gregory; Villasenor, Joel; Garrett Jernigan, J.; Crew, Geoffrey B.; Hurley, Kevin; Ricker, George R.; Woosley, Stanford E.; Butler, Nat; Levine, Al; Doty, John P.; Donaghy, Timothy Q.; Fenimore, Edward E.; Galassi, Mark; Boer, Michel; Dezalay, Jean Pascal; Olive, Jean François; Braga, Joao; Manchanda, Ravi; Pizzichini, Graziella; Kawai, Nobuyuki.

:: Publications of the Astronomical Society of Japan, 巻 57, 番号 6, 2005, p. 1031-1039.

研究成果: Article

Sato, R, Sakamoto, T, Kataoka, J, Yoshida, A, Suzuki, M, Kotoku, J, Urata, Y, Yamamoto, Y, Arimoto, M, Tamagawa, T, Shirasaki, Y, Torii, K, Matsuoka, M, Nakagawa, Y, Yamazaki, T, Tanaka, K, Maetou, M, Yamauchi, M, Takagishi, K, Lamb, DQ, Atteia, JL, Vanderspek, R, Graziani, C, Prigozhin, G, Villasenor, J, Garrett Jernigan, J, Crew, GB, Hurley, K, Ricker, GR, Woosley, SE, Butler, N, Levine, A, Doty, JP, Donaghy, TQ, Fenimore, EE, Galassi, M, Boer, M, Dezalay, JP, Olive, JF, Braga, J, Manchanda, R, Pizzichini, G & Kawai, N 2005, 'HETE-2 localization and observations of the gamma-ray burst GRB 020813', Publications of the Astronomical Society of Japan, 巻. 57, 番号 6, pp. 1031-1039.
Sato, Rie ; Sakamoto, Takanori ; Kataoka, Jun ; Yoshida, Atsumasa ; Suzuki, Motoko ; Kotoku, Junichi ; Urata, Yuji ; Yamamoto, Yoshihisa ; Arimoto, Makoto ; Tamagawa, Toru ; Shirasaki, Yuji ; Torii, Ken'ichi ; Matsuoka, Masaru ; Nakagawa, Yujin ; Yamazaki, Toru ; Tanaka, Kaoru ; Maetou, Miki ; Yamauchi, Makoto ; Takagishi, Kunio ; Lamb, Donald Q. ; Atteia, Jean Luc ; Vanderspek, Roland ; Graziani, Carlo ; Prigozhin, Gregory ; Villasenor, Joel ; Garrett Jernigan, J. ; Crew, Geoffrey B. ; Hurley, Kevin ; Ricker, George R. ; Woosley, Stanford E. ; Butler, Nat ; Levine, Al ; Doty, John P. ; Donaghy, Timothy Q. ; Fenimore, Edward E. ; Galassi, Mark ; Boer, Michel ; Dezalay, Jean Pascal ; Olive, Jean François ; Braga, Joao ; Manchanda, Ravi ; Pizzichini, Graziella ; Kawai, Nobuyuki. / HETE-2 localization and observations of the gamma-ray burst GRB 020813. :: Publications of the Astronomical Society of Japan. 2005 ; 巻 57, 番号 6. pp. 1031-1039.
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abstract = "A bright, long gamma-ray burst (GRB) was detected and localized by the instruments on board the High Energy Transient Explorer 2 satellite (HETE-2) at 02:44:19.17 UTC (9859.17 s UT) on 2002 August 13. The location was reported to the GRB Coordinates Network (GCN) about 4 min after the burst. In the prompt emission, the burst had a duration of approximately 125 s, and more than four peaks. We analyzed the time-resolved 2-400 keV energy spectra of the prompt emission of GRB 020813 using the Wide Field X-Ray Monitor (WXM) and the French Gamma Telescope (FREGATE) in detail. We found that the early part of the burst (17-52 s after the burst trigger) shows a depletion of low-energy photons below about 50 keV. It is difficult to explain the depletion by either synchrotron self-absorption or Comptonization. One possibility is that the low-energy depletion may be understood as a mixture of {"}jitter{"} radiation with the usual synchrotron radiation component.",
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TY - JOUR

T1 - HETE-2 localization and observations of the gamma-ray burst GRB 020813

AU - Sato, Rie

AU - Sakamoto, Takanori

AU - Kataoka, Jun

AU - Yoshida, Atsumasa

AU - Suzuki, Motoko

AU - Kotoku, Junichi

AU - Urata, Yuji

AU - Yamamoto, Yoshihisa

AU - Arimoto, Makoto

AU - Tamagawa, Toru

AU - Shirasaki, Yuji

AU - Torii, Ken'ichi

AU - Matsuoka, Masaru

AU - Nakagawa, Yujin

AU - Yamazaki, Toru

AU - Tanaka, Kaoru

AU - Maetou, Miki

AU - Yamauchi, Makoto

AU - Takagishi, Kunio

AU - Lamb, Donald Q.

AU - Atteia, Jean Luc

AU - Vanderspek, Roland

AU - Graziani, Carlo

AU - Prigozhin, Gregory

AU - Villasenor, Joel

AU - Garrett Jernigan, J.

AU - Crew, Geoffrey B.

AU - Hurley, Kevin

AU - Ricker, George R.

AU - Woosley, Stanford E.

AU - Butler, Nat

AU - Levine, Al

AU - Doty, John P.

AU - Donaghy, Timothy Q.

AU - Fenimore, Edward E.

AU - Galassi, Mark

AU - Boer, Michel

AU - Dezalay, Jean Pascal

AU - Olive, Jean François

AU - Braga, Joao

AU - Manchanda, Ravi

AU - Pizzichini, Graziella

AU - Kawai, Nobuyuki

PY - 2005

Y1 - 2005

N2 - A bright, long gamma-ray burst (GRB) was detected and localized by the instruments on board the High Energy Transient Explorer 2 satellite (HETE-2) at 02:44:19.17 UTC (9859.17 s UT) on 2002 August 13. The location was reported to the GRB Coordinates Network (GCN) about 4 min after the burst. In the prompt emission, the burst had a duration of approximately 125 s, and more than four peaks. We analyzed the time-resolved 2-400 keV energy spectra of the prompt emission of GRB 020813 using the Wide Field X-Ray Monitor (WXM) and the French Gamma Telescope (FREGATE) in detail. We found that the early part of the burst (17-52 s after the burst trigger) shows a depletion of low-energy photons below about 50 keV. It is difficult to explain the depletion by either synchrotron self-absorption or Comptonization. One possibility is that the low-energy depletion may be understood as a mixture of "jitter" radiation with the usual synchrotron radiation component.

AB - A bright, long gamma-ray burst (GRB) was detected and localized by the instruments on board the High Energy Transient Explorer 2 satellite (HETE-2) at 02:44:19.17 UTC (9859.17 s UT) on 2002 August 13. The location was reported to the GRB Coordinates Network (GCN) about 4 min after the burst. In the prompt emission, the burst had a duration of approximately 125 s, and more than four peaks. We analyzed the time-resolved 2-400 keV energy spectra of the prompt emission of GRB 020813 using the Wide Field X-Ray Monitor (WXM) and the French Gamma Telescope (FREGATE) in detail. We found that the early part of the burst (17-52 s after the burst trigger) shows a depletion of low-energy photons below about 50 keV. It is difficult to explain the depletion by either synchrotron self-absorption or Comptonization. One possibility is that the low-energy depletion may be understood as a mixture of "jitter" radiation with the usual synchrotron radiation component.

KW - Gamma-rays: bursts

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UR - http://www.scopus.com/inward/citedby.url?scp=31544460954&partnerID=8YFLogxK

M3 - Article

VL - 57

SP - 1031

EP - 1039

JO - Publication of the Astronomical Society of Japan

JF - Publication of the Astronomical Society of Japan

SN - 0004-6264

IS - 6

ER -