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 an 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. The 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 GRB000301C can be well fitted in our model, which might provide a probe of the properties of GRB progenitors.
WANG Wei;DAI Zi-Gao. Gamma-Ray Burst Afterglows with Energy Injection: Homogeneous Versus Wind External Media[J]. 中国物理快报, 2001, 18(8): 1153-1155.
WANG Wei, DAI Zi-Gao. Gamma-Ray Burst Afterglows with Energy Injection: Homogeneous Versus Wind External Media. Chin. Phys. Lett., 2001, 18(8): 1153-1155.
2001, Vol. 18 
