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Testing the External-Shock Model of Gamma-Ray Bursts Using the Late-Time Simultaneous Optical and X-Ray Afterglows
https://sucra.repo.nii.ac.jp/records/12964
https://sucra.repo.nii.ac.jp/records/129648c193812-3c62-4622-b497-0852dd39ae45
名前 / ファイル | ライセンス | アクション |
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A1002306.pdf (70.2 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2007-11-20 | |||||
タイトル | ||||||
タイトル | Testing the External-Shock Model of Gamma-Ray Bursts Using the Late-Time Simultaneous Optical and X-Ray Afterglows | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | gamma rays : bursts | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | gamma rays : observations | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
浦田, 裕次
× 浦田, 裕次× Yamazaki, Ryo× Sakamoto, Takanori× Huang, Kuiyun× Zheng, Weikang× Sato, Goro× Aoki, Tsutomu× Deng, Jinsong× Ioka, Kunihito× Ip, WingHuen× Kawabata, Koji S.× Lee, YiHsi× Xin, Liping× Mito, Liping× Miyata, Takashi× Nakada, Yoshikazu× Ohsugi, Takashi× Qiu, Yulei× Soyano, Takao× Tarusawa, Kenichi× 田代, 信× Uemura, Makoto× Wei, Jianyan× Yamashita, Takuya |
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著者 ローマ字 | ||||||
Urata, Yuji | ||||||
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Yamazaki, Ryo | ||||||
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Sakamoto, Takanori | ||||||
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Huang, Kuiyun | ||||||
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Zheng, Weikang | ||||||
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Sato, Goro | ||||||
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Aoki, Tsutomu | ||||||
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Deng, Jinsong | ||||||
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Ioka, Kunihito | ||||||
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Ip, WingHuen | ||||||
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Kawabata, Koji S. | ||||||
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Lee, YiHsi | ||||||
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Xin, Liping | ||||||
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Mito, Hiroyuki | ||||||
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Miyata, Takashi | ||||||
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Nakada, Yoshikazu | ||||||
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Ohsugi, Takashi | ||||||
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Qiu, Yulei | ||||||
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Soyano, Takao | ||||||
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Tarusawa, Kenichi | ||||||
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Tashiro, Makoto | ||||||
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Uemura, Makoto | ||||||
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Wei, Jianyan | ||||||
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Yamashita, Takuya | ||||||
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埼玉大学理学部物理学科 | ||||||
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埼玉大学大学院理工学研究科物質科学部門 | ||||||
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Department of Physics, Saitama University, | ||||||
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Graduate School of Science and Engineering, Saitama University | ||||||
書誌情報 |
The Astrophysical Journal Letters 巻 668, 号 2, p. L95-L98, 発行日 2007 |
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2007-10 | ||||||
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出版者 | American Astronomical Society | |||||
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収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0004637X | |||||
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識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1086/522930 | |||||
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内容記述タイプ | Abstract | |||||
内容記述 | We study the "normal" decay phase of the X- ray afterglows of gamma- ray bursts ( GRBs), which follows the shallow decay phase, using the events simultaneously observed in the R band. The classical external- shock model - in which neither the delayed energy injection nor time dependency of shock microphysics is considered shows that the decay indices of the X- ray and R- band light curves, alpha(x) and alpha(o), obey a certain relation, and that in particular, alpha(o) - alpha(x) should be larger than -1/4 unless the ambient density increases with the distance from the central engine. For our selected 14 samples, we have found that four events violate the limit at more than the 3 sigma level, so that a fraction of events are outliers of the classical external-shock model at the "normal" decay phase. | |||||
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内容記述タイプ | Other | |||||
内容記述 | text | |||||
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内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
作成日 | ||||||
日付 | 2007-11-20 | |||||
日付タイプ | Created | |||||
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A1002306 |