Year: 2017
Type: article
Abstract: ABSTRACT GRB 140903A, a short duration γ-ray burst (SGRB) detected by Swift, is characterized by its long-lasting radio emission among SGRBs. In addition to the <?CDATA $\sim {10}^{6}$?> ∼ 10 6 s radio afterglow emission, the afterglow of GRB 140903A displays a plateau from 103 s to <?CDATA $7\times {10}^{3}\,{\rm{s}}$?> 7 × 10 3 s in the X-rays. In this work, we attribute the X-ray plateau to the energy injection into the decelerating blast wave and then model the later radio/optical/X-ray afterglow emission within the standard fireball afterglow model. The afterglow emission has been well reproduced with reasonable physical parameters, including a jet half-opening angle of ∼0.05.
Source: The Astrophysical Journal
Authors: Shuai Zhang, Zhi-Ping Jin, Yuan-Zhu Wang, Da-Ming Wei
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2562497979