The Interpretation of the Multi-wavelength Afterglow Emission of Short GRB 140903A
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 ∼ {10}6 s radio afterglow emission, the afterglow of GRB 140903A displays a plateau from 103 s to 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.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 2017
- DOI:
- 10.3847/1538-4357/835/1/73
- arXiv:
- arXiv:1612.02475
- Bibcode:
- 2017ApJ...835...73Z
- Keywords:
-
- gamma-ray burst: general;
- gamma-ray burst: individual: GRB 140903;
- ISM: jets and outflows;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- doi:10.3847/1538-4357/835/1/73