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.
|Issue number||1 II|
|State||Published - 1 Jan 2007|
- Gamma rays: bursts
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Light-curve data for GRB 050319
Huang, K. Y. (Creator), Urata, Y. (Creator), Kuo, P. H. (Creator), Ip, W. (Creator), Ioka, K. (Creator), Aoki, T. (Creator), Chen, C. W. (Creator), Chen, W. (Creator), Isogai, M. (Creator), Lin, H. C. (Creator), Makishima, K. (Creator), Mito, H. (Creator), Miyata, T. (Creator), Nakada, Y. (Creator), Nishiura, S. (Creator), Onda, K. (Creator), Qiu, Y. (Creator), Soyano, T. (Creator), Tamagawa, T. (Creator), Tarusawa, K. (Creator), Tashiro, M. (Creator) & Yoshioka, T. (Creator), Centre de Donnees Strasbourg (CDS), 2008
DOI: 10.26093/cds/vizier.16549025, https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/654/L25