Multiple scattering in wind models of gamma-ray bursts

Details Multiple scattering in wind models of gamma-ray bursts Multiple scattering in wind models of gamma-ray bursts

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aipc..265..241s&link_type=abstract

Gamma-ray bursts. AIP Conference Proceedings, Volume 265, pp. 241-245 (1991).

Astronomy and Astrophysics

Astrophysics

5

Gamma-Ray Sources, Gamma-Ray Bursts, Neutron Stars, Fundamental Aspects Of Astrophysics

Scientific paper

In wind models of γ-ray bursts, it has been assumed that soft x-ray photons are scattered only once by relativistic electrons moving away from the star; this assumes that the scattering optical depth is small. Using the observational data from the bursts, we consider three methods for estimating this optical depth: (i) the luminosity of the burst, (ii) the ratio of the γ-ray flux (>~10 keV) to x-ray flux (<10 keV), (iii) the presence or lack of cyclotron lines. Within the context of the wind models, we find that multiple scattering is likely to be important in the formation of the spectrum in γ-ray bursts.

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