HETE-2 observations of the X-ray flash XRF 040916

Makoto Arimoto, Nobuyuki Kawai, Motoko Suzuki, Rie Sato, Nicolas Vasquez Pazmino, Takashi Shimokawabe, Takuto Ishimura, Ju N Ichi Kotoku, Atsumasa Yoshida, Toru Tamagawa, Yuji Shirasaki, Masaru Matsuoka, Yujin Nakagawa, Nobuyuki Ishikawa, Akina Kobayashi, Satoshi Sugita, Ichiro Takahashi, Makoto Kuwahara, Makoto Yamauchi, Kunio Takagishi & 26 others Isamu Hatsukade, Jean Luc Atteia, Alexandre Pelangeon, Roland Vanderspek, Carlo Graziani, Gregory Prigozhin, Joel Villasenor, J. Garrett Jernigan, Geoffrey B. Crew, Kevin Hurley, Takanori Sakamoto, George R. Ricker, Stanford E. Woosley, Nat Butler, Al Levine, John P. Doty, Timothy Q. Donaghy, Donald Q. Lamb, Edward E. Fenimore, Mark Galassi, Michel Boer, Jean Pascal Dezalay, Jean François Olive, Joao Braga, Ravi Manchanda, Grazieila Pizzichini

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A long X-ray flash was detected and localized by instruments aboard the High Energy Transient Explorer II (HETE-2) at 00:03:30 UT on 2004 September 16. The position was reported to the GRB Coordinates Network (GCN) approximately 2 hours after the burst. This burst consisted of two peaks separated by ∼ 200 s, with durations of about 110 s and 60 s. We analyzed the energy spectra of the 1st and 2nd peaks observed with the Wide Field X-Ray Monitor (WXM) and the French Gamma Telescope (FREGATE). We discuss the origin of the 2nd peak in terms of the flux variabilities and timescales. We find that it is most likely to be part of prompt emission, and is explained by a long-acting engine model. This feature is similar to some bright X-ray flares detected in the early afterglow phase of bursts observed by the Swift satellite.

Original languageEnglish
Pages (from-to)695-702
Number of pages8
JournalPublications of the Astronomical Society of Japan
Volume59
Issue number3
Publication statusPublished - 2007
Externally publishedYes

Fingerprint

X-ray fluorescence
flash
bursts
x rays
afterglows
flares
energy
engines
monitors
engine
energy spectra
telescopes
timescale

Keywords

  • Gamma-rays: bursts
  • X-rays: bursts
  • X-rays: individual (XRF 040916)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Arimoto, M., Kawai, N., Suzuki, M., Sato, R., Pazmino, N. V., Shimokawabe, T., ... Pizzichini, G. (2007). HETE-2 observations of the X-ray flash XRF 040916. Publications of the Astronomical Society of Japan, 59(3), 695-702.

HETE-2 observations of the X-ray flash XRF 040916. / Arimoto, Makoto; Kawai, Nobuyuki; Suzuki, Motoko; Sato, Rie; Pazmino, Nicolas Vasquez; Shimokawabe, Takashi; Ishimura, Takuto; Kotoku, Ju N Ichi; Yoshida, Atsumasa; Tamagawa, Toru; Shirasaki, Yuji; Matsuoka, Masaru; Nakagawa, Yujin; Ishikawa, Nobuyuki; Kobayashi, Akina; Sugita, Satoshi; Takahashi, Ichiro; Kuwahara, Makoto; Yamauchi, Makoto; Takagishi, Kunio; Hatsukade, Isamu; Atteia, Jean Luc; Pelangeon, Alexandre; Vanderspek, Roland; Graziani, Carlo; Prigozhin, Gregory; Villasenor, Joel; Garrett Jernigan, J.; Crew, Geoffrey B.; Hurley, Kevin; Sakamoto, Takanori; Ricker, George R.; Woosley, Stanford E.; Butler, Nat; Levine, Al; Doty, John P.; Donaghy, Timothy Q.; Lamb, Donald Q.; Fenimore, Edward E.; Galassi, Mark; Boer, Michel; Dezalay, Jean Pascal; Olive, Jean François; Braga, Joao; Manchanda, Ravi; Pizzichini, Grazieila.

In: Publications of the Astronomical Society of Japan, Vol. 59, No. 3, 2007, p. 695-702.

Research output: Contribution to journalArticle

Arimoto, M, Kawai, N, Suzuki, M, Sato, R, Pazmino, NV, Shimokawabe, T, Ishimura, T, Kotoku, JNI, Yoshida, A, Tamagawa, T, Shirasaki, Y, Matsuoka, M, Nakagawa, Y, Ishikawa, N, Kobayashi, A, Sugita, S, Takahashi, I, Kuwahara, M, Yamauchi, M, Takagishi, K, Hatsukade, I, Atteia, JL, Pelangeon, A, Vanderspek, R, Graziani, C, Prigozhin, G, Villasenor, J, Garrett Jernigan, J, Crew, GB, Hurley, K, Sakamoto, T, Ricker, GR, Woosley, SE, Butler, N, Levine, A, Doty, JP, Donaghy, TQ, Lamb, DQ, Fenimore, EE, Galassi, M, Boer, M, Dezalay, JP, Olive, JF, Braga, J, Manchanda, R & Pizzichini, G 2007, 'HETE-2 observations of the X-ray flash XRF 040916', Publications of the Astronomical Society of Japan, vol. 59, no. 3, pp. 695-702.
Arimoto M, Kawai N, Suzuki M, Sato R, Pazmino NV, Shimokawabe T et al. HETE-2 observations of the X-ray flash XRF 040916. Publications of the Astronomical Society of Japan. 2007;59(3):695-702.
Arimoto, Makoto ; Kawai, Nobuyuki ; Suzuki, Motoko ; Sato, Rie ; Pazmino, Nicolas Vasquez ; Shimokawabe, Takashi ; Ishimura, Takuto ; Kotoku, Ju N Ichi ; Yoshida, Atsumasa ; Tamagawa, Toru ; Shirasaki, Yuji ; Matsuoka, Masaru ; Nakagawa, Yujin ; Ishikawa, Nobuyuki ; Kobayashi, Akina ; Sugita, Satoshi ; Takahashi, Ichiro ; Kuwahara, Makoto ; Yamauchi, Makoto ; Takagishi, Kunio ; Hatsukade, Isamu ; Atteia, Jean Luc ; Pelangeon, Alexandre ; Vanderspek, Roland ; Graziani, Carlo ; Prigozhin, Gregory ; Villasenor, Joel ; Garrett Jernigan, J. ; Crew, Geoffrey B. ; Hurley, Kevin ; Sakamoto, Takanori ; Ricker, George R. ; Woosley, Stanford E. ; Butler, Nat ; Levine, Al ; Doty, John P. ; Donaghy, Timothy Q. ; Lamb, Donald Q. ; Fenimore, Edward E. ; Galassi, Mark ; Boer, Michel ; Dezalay, Jean Pascal ; Olive, Jean François ; Braga, Joao ; Manchanda, Ravi ; Pizzichini, Grazieila. / HETE-2 observations of the X-ray flash XRF 040916. In: Publications of the Astronomical Society of Japan. 2007 ; Vol. 59, No. 3. pp. 695-702.
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abstract = "A long X-ray flash was detected and localized by instruments aboard the High Energy Transient Explorer II (HETE-2) at 00:03:30 UT on 2004 September 16. The position was reported to the GRB Coordinates Network (GCN) approximately 2 hours after the burst. This burst consisted of two peaks separated by ∼ 200 s, with durations of about 110 s and 60 s. We analyzed the energy spectra of the 1st and 2nd peaks observed with the Wide Field X-Ray Monitor (WXM) and the French Gamma Telescope (FREGATE). We discuss the origin of the 2nd peak in terms of the flux variabilities and timescales. We find that it is most likely to be part of prompt emission, and is explained by a long-acting engine model. This feature is similar to some bright X-ray flares detected in the early afterglow phase of bursts observed by the Swift satellite.",
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AU - Arimoto, Makoto

AU - Kawai, Nobuyuki

AU - Suzuki, Motoko

AU - Sato, Rie

AU - Pazmino, Nicolas Vasquez

AU - Shimokawabe, Takashi

AU - Ishimura, Takuto

AU - Kotoku, Ju N Ichi

AU - Yoshida, Atsumasa

AU - Tamagawa, Toru

AU - Shirasaki, Yuji

AU - Matsuoka, Masaru

AU - Nakagawa, Yujin

AU - Ishikawa, Nobuyuki

AU - Kobayashi, Akina

AU - Sugita, Satoshi

AU - Takahashi, Ichiro

AU - Kuwahara, Makoto

AU - Yamauchi, Makoto

AU - Takagishi, Kunio

AU - Hatsukade, Isamu

AU - Atteia, Jean Luc

AU - Pelangeon, Alexandre

AU - Vanderspek, Roland

AU - Graziani, Carlo

AU - Prigozhin, Gregory

AU - Villasenor, Joel

AU - Garrett Jernigan, J.

AU - Crew, Geoffrey B.

AU - Hurley, Kevin

AU - Sakamoto, Takanori

AU - Ricker, George R.

AU - Woosley, Stanford E.

AU - Butler, Nat

AU - Levine, Al

AU - Doty, John P.

AU - Donaghy, Timothy Q.

AU - Lamb, Donald 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, Grazieila

PY - 2007

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N2 - A long X-ray flash was detected and localized by instruments aboard the High Energy Transient Explorer II (HETE-2) at 00:03:30 UT on 2004 September 16. The position was reported to the GRB Coordinates Network (GCN) approximately 2 hours after the burst. This burst consisted of two peaks separated by ∼ 200 s, with durations of about 110 s and 60 s. We analyzed the energy spectra of the 1st and 2nd peaks observed with the Wide Field X-Ray Monitor (WXM) and the French Gamma Telescope (FREGATE). We discuss the origin of the 2nd peak in terms of the flux variabilities and timescales. We find that it is most likely to be part of prompt emission, and is explained by a long-acting engine model. This feature is similar to some bright X-ray flares detected in the early afterglow phase of bursts observed by the Swift satellite.

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KW - Gamma-rays: bursts

KW - X-rays: bursts

KW - X-rays: individual (XRF 040916)

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