Iron line afterglows: how to produce them

Details Iron line afterglows: how to produce them Iron line afterglows: how to produce them

1999-06-14

arxiv.org/abs/astro-ph/9906235v1

Astronomy and Astrophysics

Astrophysics

2 pages, A&AS in press, proceedings of the Workshop "Gamma Ray Bursts in the Afterglow Era" held in Rome, November 1998

Scientific paper

10.1051/aas:1999347

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.

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