MG13 - Talk detail |
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Participant |
Pe'er, Asaf | |||||||
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Institution |
Harvard-Smithsonian Center for Astrophysics - 60 garden st., MS-51 - Cambridge - MA - USA | |||||||
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Session |
GRB2 |
Accepted |
Yes |
Order |
4 |
Time |
15:30 - 16:00 | |
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Talk |
Oral abstract |
Title |
Photospheres in GRBs: a critical overview | |||||
| Co-authors | ||||||||
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Abstract |
I will review some key observables seen during GRB prompt emission phase. These include: the narrow distribution of the peak energy at the sub-MeV range, the peak energy - luminosity relation and the clustering of the low energy spectral slope index around <alpha>~-1. I will then confront the different theoretical suggestions with these observations, discussing: (1) optically thin emission models; (2) pure "Planck" spectra; (3) broadened "Planck" spectra, caused by (a) sub-photospheric heating, and (b) geometrical broadening. I will discuss the success and failure of each of these models in explaining the observed spectra. |
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Session |
GRB1 |
Accepted |
Yes |
Order |
1 |
Time |
14:05 - 14:30 | |
|
Talk |
Oral abstract |
Title |
Theory of photospheric emission in GRBs | |||||
| Co-authors | ||||||||
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Abstract |
TBD |
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