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25 April 2024 |
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Radiation Processes in GRBs. Prompt Emission | | Mikhail V. Medvedev
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20 Oct 2004 | | Subject: | astro-ph | | Affiliation: | KU | | Abstract: | A substantial fraction of prompt GRB spectra have soft spectral indexes exceeding the maximum allowed by the synchrotron model alpha_{max}=-2/3. Some spectra also exhibit very sharp break at E_p, inconsistent with the smooth synchrotron spectra. These facts pose a serious problem for the ``optically thin synchrotron’’ interpretation of the prompt emission. We review various models suggested in order to resolve this puzzle. | | Source: | arXiv, astro-ph/0410490 | | Services: | Forum | Review | PDF | Favorites | |
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