Pandey, S B; Swenson, C A; Perley, D. A.; Guidorzi, C; Wieresma, K; Malesani, D; Akerlof, C W; Ashley, M C B; Bersier, D; Cano, Z; Yuan, Fang
The optical-infrared afterglow of the Large Area Telescope (LAT)-detected long-duration burst, GRB 090902B, has been observed by several instruments. The earliest detection by ROTSE-IIIa occurred 80 minutes after detection by the Gamma-ray Burst Monitor instrument on board the Fermi Gamma-Ray Space Telescope, revealing a bright afterglow and a decay slope suggestive of a reverse shock origin. Subsequent optical-IR observations followed the light curve for 6.5 days. The temporal and spectral...[Show more]
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