Iron line afterglows: how to produce them

Дата и время публикации : 1999-06-14T14:12:58Z

Авторы публикации и институты :
Davide Lazzati (Osservatorio Astronomico di Brera;, Universita` degli Studi di Milano)
Sergio Campana (Osservatorio Astronomico di Brera;)
Gabriele Ghisellini (Osservatorio Astronomico di Brera;)

Оригинал статьи :

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Коментарии к статье: 2 pages, A&AS in press, proceedings of the Workshop “Gamma Ray Bursts in the Afterglow Era” held in Rome, November 1998
Первичная категория: astro-ph

Все категории : astro-ph

Краткий обзор статьи: We discuss how a powerful iron line emission can be produced if ~1-5 iron rich solar masses are concentrated in the close vicinity of the burst. Recombination, thermal and fluorescent reflection are discussed. We find that recombination suffers the high Compton temperature of the plasma while the other two scenarios are not mutually exclusive and could account for the claimed iron line detected in two afterglows.

Category: Physics