The optical rebrightening of GRB100814A: an interplay of forward and reverse shocks?

M De Pasquale,N P M Kuin,S R Oates,S Schulze,Z Cano,C Guidorzi,A P Beardmore,P A Evans, Z L Uhm, Bin Zhang, M J Page,Shiho Kobayashi,Alberto J Castrotirado,Javier Gorosabel,Takashi Sakamoto, T A Fatkhullin,S B Pandey,Myungshin Im,P Chandra,Dale A Frail,He Gao,D Kopac,Youngsang Jeon,Carl Akerlof,K Y Huang,Soojong Pak,Wk Park,Andreja Gomboc,Andrea Melandri,S Zane,Carole G Mundell,Curtis J Saxton,S T Holland, F J Virgili,Yuji Urata,Iain A Steele, D F Bersier,Nial R Tanvir,V V Sokolov, A S Moskvitin

Monthly Notices of the Royal Astronomical Society（2015）

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摘要

We present a wide data set of gamma-ray, X-ray, UV/Opt/IR (UVOIR), and radio observations of the Swift GRB100814A. At the end of the slow decline phase of the X-ray and optical afterglow, this burst shows a sudden and prominent rebrightening in the optical band only, followed by a fast decay in both bands. The optical rebrightening also shows chromatic evolution. Such a puzzling behaviour cannot b...

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关键词

radiation mechanism: non-thermal,shock waves,gamma-ray burst: general

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