The Suzaku-Swift joint observation of the early X-ray afterglow of GRB060105

Makoto S. Tashiro; Keiichi Abe; Lorella Angelini; Scott Barthelmy; Neil Gehrels; Nobuyuki Ishikawa; Louis J. Kaluzienski; Nobuyuki Kawai; Richard L. Kelley; Kenzo Kinugasa; Hironobu Kodaira; Takayoshi Kohmura; Kaori Kubota; Yoshitomo Maeda; Shouta Maeno; Hiroshi Murakami; Toshio Murakami; Yujin E. Nakagawa; Kazuhiro Nakazawa; John Nousek; Shin'ya Okuno; Kaori Onda; James N. Reeves; George Ricker; Goro Sato; Eri Sonoda; Motoko Suzuki; Tadayuki Takahashi; Toru Tamagawa; KeN'Ichi Torii; Yoshihiro Ueda; Yuji Urata; Kazutaka Yamaoka; Makoto Yamauchi; Daisuke Yonetoku; Atsumasa Yoshida; Satoru Yoshinari

The Suzaku-Swift joint observation of the early X-ray afterglow of GRB060105

Makoto S. Tashiro, Keiichi Abe, Lorella Angelini, Scott Barthelmy, Neil Gehrels, Nobuyuki Ishikawa, Louis J. Kaluzienski, Nobuyuki Kawai, Richard L. Kelley, Kenzo Kinugasa, Hironobu Kodaira, Takayoshi Kohmura, Kaori Kubota, Yoshitomo Maeda, Shouta Maeno, Hiroshi Murakami, Toshio Murakami, Yujin E. Nakagawa, Kazuhiro Nakazawa, John NousekShin'ya Okuno, Kaori Onda, James N. Reeves, George Ricker, Goro Sato, Eri Sonoda, Motoko Suzuki, Tadayuki Takahashi, Toru Tamagawa, KeN'Ichi Torii, Yoshihiro Ueda, Yuji Urata, Kazutaka Yamaoka, Makoto Yamauchi, Daisuke Yonetoku, Atsumasa Yoshida, Satoru Yoshinari

Waseda Research Institute for Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Results are presented of a Suzaku and Swift joint observation for an early X-ray afterglow of GRB 060105. The bright, long gamma-ray burst GRB 060105 triggered the Swift Burst Alert Telescope (BAT) at 06:49:28 on 5 January 2006 (T₀). The Suzaku team commenced a pre-planned target of opportunity observation at 12:10 and continued till 12:00 on January 6. The X-ray flux faded during the observations from 6.8 × 10^-9 erg s ^_1cm^-2 to 1.5 × 10^-13 erg s ^_1cm^-2 in the 2-10 keV energy band. Following the prompt emission and successive "very steep decay", a "shallow decay" was observed from T₀ + 187 s to T₀ + 1287 s. After an observation gap during T₀ + (1.5 - 3) ks, an extremely early steep decay was observed in T₀ + (4-30) ks. The steep decay exhibited decay indices of 2.3 - 2.4. This very early break, if it is a jet break, is the earliest case among X-ray afterglow observations, suggesting a very narrow jet whose opening angle is well below 1°.

Original language	English
Pages (from-to)	3-6
Number of pages	4
Journal	Progress of Theoretical Physics Supplement
Issue number	169
Publication status	Published - 2007

ASJC Scopus subject areas

Physics and Astronomy(all)

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Tashiro, M. S., Abe, K., Angelini, L., Barthelmy, S., Gehrels, N., Ishikawa, N., Kaluzienski, L. J., Kawai, N., Kelley, R. L., Kinugasa, K., Kodaira, H., Kohmura, T., Kubota, K., Maeda, Y., Maeno, S., Murakami, H., Murakami, T., Nakagawa, Y. E., Nakazawa, K., ... Yoshinari, S. (2007). The Suzaku-Swift joint observation of the early X-ray afterglow of GRB060105. Progress of Theoretical Physics Supplement, (169), 3-6.

Tashiro, MS, Abe, K, Angelini, L, Barthelmy, S, Gehrels, N, Ishikawa, N, Kaluzienski, LJ, Kawai, N, Kelley, RL, Kinugasa, K, Kodaira, H, Kohmura, T, Kubota, K, Maeda, Y, Maeno, S, Murakami, H, Murakami, T, Nakagawa, YE, Nakazawa, K, Nousek, J, Okuno, S, Onda, K, Reeves, JN, Ricker, G, Sato, G, Sonoda, E, Suzuki, M, Takahashi, T, Tamagawa, T, Torii, KI, Ueda, Y, Urata, Y, Yamaoka, K, Yamauchi, M, Yonetoku, D, Yoshida, A & Yoshinari, S 2007, 'The Suzaku-Swift joint observation of the early X-ray afterglow of GRB060105', Progress of Theoretical Physics Supplement, no. 169, pp. 3-6.

@article{c7a6b38c81aa473190da08fae7fd6be0,

title = "The Suzaku-Swift joint observation of the early X-ray afterglow of GRB060105",

abstract = "Results are presented of a Suzaku and Swift joint observation for an early X-ray afterglow of GRB 060105. The bright, long gamma-ray burst GRB 060105 triggered the Swift Burst Alert Telescope (BAT) at 06:49:28 on 5 January 2006 (T0). The Suzaku team commenced a pre-planned target of opportunity observation at 12:10 and continued till 12:00 on January 6. The X-ray flux faded during the observations from 6.8 × 10-9 erg s _1cm-2 to 1.5 × 10-13 erg s _1cm-2 in the 2-10 keV energy band. Following the prompt emission and successive {"}very steep decay{"}, a {"}shallow decay{"} was observed from T0 + 187 s to T0 + 1287 s. After an observation gap during T0 + (1.5 - 3) ks, an extremely early steep decay was observed in T0 + (4-30) ks. The steep decay exhibited decay indices of 2.3 - 2.4. This very early break, if it is a jet break, is the earliest case among X-ray afterglow observations, suggesting a very narrow jet whose opening angle is well below 1°.",

author = "Tashiro, {Makoto S.} and Keiichi Abe and Lorella Angelini and Scott Barthelmy and Neil Gehrels and Nobuyuki Ishikawa and Kaluzienski, {Louis J.} and Nobuyuki Kawai and Kelley, {Richard L.} and Kenzo Kinugasa and Hironobu Kodaira and Takayoshi Kohmura and Kaori Kubota and Yoshitomo Maeda and Shouta Maeno and Hiroshi Murakami and Toshio Murakami and Nakagawa, {Yujin E.} and Kazuhiro Nakazawa and John Nousek and Shin'ya Okuno and Kaori Onda and Reeves, {James N.} and George Ricker and Goro Sato and Eri Sonoda and Motoko Suzuki and Tadayuki Takahashi and Toru Tamagawa and KeN'Ichi Torii and Yoshihiro Ueda and Yuji Urata and Kazutaka Yamaoka and Makoto Yamauchi and Daisuke Yonetoku and Atsumasa Yoshida and Satoru Yoshinari",

year = "2007",

language = "English",

pages = "3--6",

journal = "Progress of Theoretical Physics",

issn = "0033-068X",

publisher = "Yukawa Institute for Theoretical Physics",

number = "169",

}

TY - JOUR

T1 - The Suzaku-Swift joint observation of the early X-ray afterglow of GRB060105

AU - Tashiro, Makoto S.

AU - Abe, Keiichi

AU - Angelini, Lorella

AU - Barthelmy, Scott

AU - Gehrels, Neil

AU - Ishikawa, Nobuyuki

AU - Kaluzienski, Louis J.

AU - Kawai, Nobuyuki

AU - Kelley, Richard L.

AU - Kinugasa, Kenzo

AU - Kodaira, Hironobu

AU - Kohmura, Takayoshi

AU - Kubota, Kaori

AU - Maeda, Yoshitomo

AU - Maeno, Shouta

AU - Murakami, Hiroshi

AU - Murakami, Toshio

AU - Nakagawa, Yujin E.

AU - Nakazawa, Kazuhiro

AU - Nousek, John

AU - Okuno, Shin'ya

AU - Onda, Kaori

AU - Reeves, James N.

AU - Ricker, George

AU - Sato, Goro

AU - Sonoda, Eri

AU - Suzuki, Motoko

AU - Takahashi, Tadayuki

AU - Tamagawa, Toru

AU - Torii, KeN'Ichi

AU - Ueda, Yoshihiro

AU - Urata, Yuji

AU - Yamaoka, Kazutaka

AU - Yamauchi, Makoto

AU - Yonetoku, Daisuke

AU - Yoshida, Atsumasa

AU - Yoshinari, Satoru

PY - 2007

Y1 - 2007

N2 - Results are presented of a Suzaku and Swift joint observation for an early X-ray afterglow of GRB 060105. The bright, long gamma-ray burst GRB 060105 triggered the Swift Burst Alert Telescope (BAT) at 06:49:28 on 5 January 2006 (T0). The Suzaku team commenced a pre-planned target of opportunity observation at 12:10 and continued till 12:00 on January 6. The X-ray flux faded during the observations from 6.8 × 10-9 erg s _1cm-2 to 1.5 × 10-13 erg s _1cm-2 in the 2-10 keV energy band. Following the prompt emission and successive "very steep decay", a "shallow decay" was observed from T0 + 187 s to T0 + 1287 s. After an observation gap during T0 + (1.5 - 3) ks, an extremely early steep decay was observed in T0 + (4-30) ks. The steep decay exhibited decay indices of 2.3 - 2.4. This very early break, if it is a jet break, is the earliest case among X-ray afterglow observations, suggesting a very narrow jet whose opening angle is well below 1°.

AB - Results are presented of a Suzaku and Swift joint observation for an early X-ray afterglow of GRB 060105. The bright, long gamma-ray burst GRB 060105 triggered the Swift Burst Alert Telescope (BAT) at 06:49:28 on 5 January 2006 (T0). The Suzaku team commenced a pre-planned target of opportunity observation at 12:10 and continued till 12:00 on January 6. The X-ray flux faded during the observations from 6.8 × 10-9 erg s _1cm-2 to 1.5 × 10-13 erg s _1cm-2 in the 2-10 keV energy band. Following the prompt emission and successive "very steep decay", a "shallow decay" was observed from T0 + 187 s to T0 + 1287 s. After an observation gap during T0 + (1.5 - 3) ks, an extremely early steep decay was observed in T0 + (4-30) ks. The steep decay exhibited decay indices of 2.3 - 2.4. This very early break, if it is a jet break, is the earliest case among X-ray afterglow observations, suggesting a very narrow jet whose opening angle is well below 1°.

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M3 - Article

AN - SCOPUS:41149136817

SN - 0033-068X

SP - 3

EP - 6

JO - Progress of Theoretical Physics

JF - Progress of Theoretical Physics

IS - 169

ER -

The Suzaku-Swift joint observation of the early X-ray afterglow of GRB060105

Abstract

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