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Gamma-Ray Burst Afterglows with Energy Injection: Homogeneous Versus Wind External Media | | W. Wang
; Z G Dai
; | | Date: |
18 Mar 2001 | | Journal: | Chin.Phys.Lett. 18 (2001) 1153 | | Subject: | astro-ph | | Affiliation: | 1,2) and Z G Dai ( Nanjing University, NAOC, Beijing | | Abstract: | Assuming an adiabatic evolution of a gamma-ray burst (GRB) fireball interacting with an external medium, we calculate the hydrodynamics of the fireball with energy injection from a strongly magnetic millisecond pulsar through magnetic dipole radiation, and obtain the light curve of the optical afterglow from the fireball by synchrotron radiation. Results are given both for a homogeneous external medium and for a wind ejected by GRB progenitor. Our calculations are also available in both ultra-relativistic and non-relativistic phases. Furthermore, the observed R-band light curve of GRB{000301C} can be well fitted in our model, which might provide a probe of the properties of GRB progenitors. | | Source: | arXiv, astro-ph/0103284 | | Services: | Forum | Review | PDF | Favorites | |
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