Abstract
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.
Original language | English |
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Pages (from-to) | L25-L28 |
Journal | Astrophysical Journal |
Volume | 654 |
Issue number | 1 II |
DOIs | |
State | Published - 1 Jan 2007 |
Keywords
- Gamma rays: bursts