Early Optical Brightening in GRB 071010B

We report the detection of early (60-230 s) optical emission of the gamma-ray burst afterglow of GRB 071010B. No significant correlation with the prompt Y-ray emission was found. Our high time resolution data combining with other measurements within 2 days after the burst indicate that GRB 071010B i...

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Veröffentlicht in:	The Astrophysical journal 2008-05, Vol.679 (1), p.L5-L8
Hauptverfasser:	Wang, J. H, Schwamb, M. E, Huang, K. Y, Wen, C. Y, Zhang, Z. W, Wang, S. Y, Chen, W. P, Bianco, F. B, Dave, R, Lehner, M. J, Marshall, S. L, Porrata, R, Alcock, C, Byun, Y. I, Cook, K. H, King, S. K, Lee, T, Urata, Y
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Earth, ocean, space Exact sciences and technology
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Beschreibung
Zusammenfassung:	We report the detection of early (60-230 s) optical emission of the gamma-ray burst afterglow of GRB 071010B. No significant correlation with the prompt Y-ray emission was found. Our high time resolution data combining with other measurements within 2 days after the burst indicate that GRB 071010B is composed of a weak early brightening ( alpha similar to 0.6), probably caused by the peak frequency passing through the optical wavelengths, followed by a decay ( alpha similar to -0.51), attributed to continuous energy injection by patchy Jets.
ISSN:	1538-4357 0004-637X 1538-4357
DOI:	10.1086/588814