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Are gamma-ray bursts optically thick?
Goodman, J.
AA(Institute for Advanced Study, Princeton, NJ)
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 308, Sept. 15, 1986, p. L47-L50. (ApJL Homepage)
Publication Date:
NASA/STI Keywords:
Astronomical Models, Gamma Ray Bursts, Optical Thickness, Black Body Radiation, Distance, Energy Distribution, Nuclear Reactions
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To test the hypothesis that optically thick neutron-star models can produce very hard spectra if the energy density of the source is as high as it is in a thermal radiation field at a temperature of about 1 MeV, consideration is given to the fate of a quantity E of pure energy. This quantity is initially confined to a sphere in equilibrium at a temperature greater than 1 MeV and then allowed to expand freely. Given the shortcomings of conventional models, the possibility that burst sources could be optically thick and distant should not be dismissed.

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