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Title: Energy and radiation spectrum of electrons in ultra-relativistic shocks of GRB afterglows
Authors: Resmi, L.
Bhattacharya, D.
Keywords: GRB Afterglow
Spectral index
Particle acceleration
Issue Date: 2003
Publisher: The Astronomical Society of India
Citation: Bulletin of the Astronomical Society of India, 2003, Vol.31, p353-355
Abstract: We consider particle acceleration near ultra relativistic shocks (shock p 1) and the distribution of accelerated particles in the shock downstream. We suggest that the electron energy spectrum will settle mp into an "universal" power law with index p 2.2 above an "injection break" at e = i m shock, and e will be flatter at lower energies. The synchrotron radiation spectrum arising from these electrons is computed for a decelerating relativistic fireball. We show that this model can account well for the observed spectra and lightcurves of Gamma Ray Burst Afterglows.
ISSN: 0304-9523
Copyright: (2003) by the Astronomical Society of India.
Appears in Collections:Research Papers (A&A)

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