Astron. Astrophys. Suppl. Ser.
Volume 138, Number 3, September 1999Gamma-Ray Bursts in the Afterglow Era Contents Rome, November 3-6, 1998
|Page(s)||487 - 488|
|Published online||15 September 1999|
GRB redshift determination in the X–ray band
Osservatorio Astronomico di Brera, Via Bianchi 46, I–23807 Merate (Lc), Italy
2 Dipartimento di Fisica, Università degli Studi di Milano, Via Celoria 16, I–20133 Milano, Italy
3 Dipartimento di Fisica dell'Università di Como, via Lucini 3, I–22100 Como, Italy
Accepted: 23 June 1999
If ray bursts originate in dense stellar forming regions, the interstellar material can imprint detectable absorption features on the observed X–ray spectrum. Such features can be detected by existing and planned X–ray satellites, as long as the X–ray afterglow is observed after a few minutes from the burst. Detection of these X–ray features will make possible the determination of the redshift of ray bursts even when their optical afterglows are severely dimmed by extinction. For further detail see Ghisellini et al. (1999).
Key words: gamma-rays: bursts / X–rays: general / line: formation
© European Southern Observatory (ESO), 1999