Multicolor shallow decay and chromatic breaks in the GRB 050319 optical afterglow

K. Y. Huang, Y. Urata, P. H. Kuo, W. H. Ip, K. Ioka, T. Aoki, C. W. Chen, W. P. Chen, M. Isogai, H. C. Lin, K. Makishima, H. Mito, T. Miyata, Y. Nakada, S. Nishiura, K. Onda, Y. Qiu, T. Soyano, T. Tamagawa, K. TarusawaM. Tashiro, T. Yoshioka

研究成果: 雜誌貢獻期刊論文同行評審

36 引文 斯高帕斯(Scopus)

摘要

Multiwavelength observations of the optical afterglow of GRB 050319 were performed from 1.31 to 9.92 hr after the burst. Our R-band light curves, combined with other published data, can be described by the smooth broken power-law function, with α1 = -0.84 ± 0.02 to α2 = -0.48 ± 0.03, 0.04 days after the gamma-ray burst. The optical light curves are characterized by shallow decays - as was also observed in the X-rays - which may have a similar origin, related to energy injection. However, our observations indicate that there is still a puzzle concerning the chromatic breaks in the R-band light curve (at 0.04 days) and the X-ray light curve (at 0.004 days) that remains to be solved.

原文???core.languages.en_GB???
頁(從 - 到)L25-L28
期刊Astrophysical Journal
654
發行號1 II
DOIs
出版狀態已出版 - 1 1月 2007

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