GRB 021004: Reverse Shock Emission | Zendy

S. Kobayashi | Zendy; Bing Zhang | Zendy

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GRB 021004: Reverse Shock Emission

Author(s) -

S. Kobayashi,

Bing Zhang

Publication year - 2003

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/367691

Subject(s) - afterglow , gamma ray burst , light curve , astrophysics , physics , shock (circulatory) , light emission , optics , medicine

We show that the re-brightening in the GRB 021004 optical afterglow lightcurve around ~ 0.1 day can be explained within the framework of the standardfireball model. The superposition of a forward and reverse shock emissionsresult in the peculiar behavior. With the standard values of parametersobtained in other afterglow observations, we can construct an example case inwhich theoretical estimates reasonably fit the broadband observations.Therefore, the peculiarity of the light curve might be a common feature inearly gamma-ray burst afterglows.Comment: 11 pages, 2 figures, Accepted for publication in ApJ

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