Structure in the early afterglow lightcurve of the gamma-ray burst of 29 March 2003

Abstract

Gamma-ray bursts (GRBs) are energetic explosions that for 0.01--100 s are the brightest gamma-ray sources in the sky. Observations of the early evolution of afterglows we expected to provide clues about the nature of the bursts, but their rapid fading has hampered such studies; some recent rapid localizations of bursts have improved the situation. Here we report on an early detection of the very bright afterglow of the burst of 29 March 2003 (GRB030329). Our data show that, even early in the aferglow phase, the light curve shows unexpectedly complicated structures superimposed on the fading background.

8 pages, 1 figure, To appear in Nature June 19 issue. For the access to the data in the paper, see http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/GRB/grb030329/GRB030329_information .html

References in corpus (4)

• Spectroscopic Discovery of the Supernova 2003dh Associated with GRB 030329
• Discovery of Early Optical Emission from GRB 021211
• The Early Light Curve of the Optical Afterglow of GRB 021211
• Variability in GRB Afterglows and GRB 021004

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