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Possible physical explanation of the intrinsic Ep,i-“intensity” correlation commonly used to “standardize” GRBsстатья
Информация о цитировании статьи получена из
Web of Science,
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 6 февраля 2017 г.
- Авторы: Frontera F., Lorenzo A., Farinelli R., Dichiara S., Guidorzi C., Landi R., Titarchuk L.
- Журнал: International Journal of Modern Physics D
- Том: 25
- Номер: 5
- Год издания: 2016
- Издательство: World Scientific Publishing Co
- Местоположение издательства: Singapore
- Первая страница: 1
- Последняя страница: 9
- DOI: 10.1142/S0218271816300147
- Аннотация: It is recognized that very likely the correlation between peak energy EpEp and bolometric intensity is intrinsic to GRBs. However, its physical origin is still debated. In this paper, we will discuss a possible interpretation of the correlation in the light of a GRB prompt emission spectral model, grbcomp, proposed in [L. Titarchuk, R. Farinelli, F. Frontera and L. Amati, Astrophys. J. 752 (2012) 116]. grbcomp is essentially a photospheric model for the prompt emission of GRBs. Its main ingredients are a thermal bath of soft seed photons and a subrelativistically expanding outflow plasma, consequence of the star explosion. The emerging spectrum is the result of two phases: first, up to the photospheric radius, Comptonization of a subrelativistic electron outflow with thermal bath of soft photons, then, convolution of the Comptonized photons in the first phase with a Green function. The result of this convolution is consistent with different physical processes, in particular Inverse Compton. grbcomp has been successfully tested using a significant sample of GRB time resolved spectra in the broad energy band from 2keV to 2MeV [F. Frontera, L. Amati, R. Farinelli, S. Dichiara, C. Guidorzi, R. Landi and L. Titarchuk, Astrophys. J. 779 (2013) 175].
- Добавил в систему: Титарчук Лев Григорьевич