Earliest Detection of the Optical Afterglow of GRB 030329 and Its Variability

• Rie Sato

• Nobuyuki Kawai

• Motoko Suzuki

• Youichi Yatsu

• Jun Kataoka

• Ryo Takagi

• Kenshi Yanagisawa

• Hitoshi Yamaoka

書誌事項

タイトル別名

• Earliest Detection of the Optical Afterglow of GRB 030329 and Its Variability(Poster) :

抄録

We report an earliest detection of an optical afterglow of GRB 030329 at the Tokyo Institute of Technology (Tokyo, Japan). Our observation started 67 minutes after the burst and continued for two succeeding nights. Combining our data with those reported in GCN, we find that the early afterglow light curve of the first half day is described by a broken power-law (∝t^<-α>) function with indices α_1=0.88±0.01 (0.047 days < t < t_<b1>), α_2=1.18±0.01 (t_<b1> < t < t_<b2>), and α_3=1.81±0.04 (t_<b2> < t < 1.2 days), where t_<b1>～0.26 days and t_<b2>～0.54 days, respectively. The change of the power-law index at the first break at t～0.26 days is consistent with that expected from a "cooling break".

収録刊行物

• Progress of Theoretical Physics Supplement

  Progress of Theoretical Physics Supplement 155 411-412, 2004

  Oxford University Press (OUP)

キーワード

• Physics and Astronomy (miscellaneous)

詳細情報

• CRID: 1360284921854477952
• NII論文ID: 110001216441
• NII論文ID: 210000127880
• NII書誌ID: AA00791466
• DOI: 10.1143/ptps.155.411
• ISSN: 03759687
• Web Site: http://academic.oup.com/ptps/article-pdf/doi/10.1143/PTPS.155.411/5351039/155-411.pdf
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10885730
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