Hunting Gamma-Ray Bursts in the Lyman-Forest; GRB 000131 at z = 4.50
Abstract
We report the discovery and follow-up observations of the afterglow of GRB 000131. The optical identification was made with the VLT, 84 hours after the burst following a BATSE detection and an Inter Planetary Network localization. Broadband and spectroscopic observations of the spectralenergy distribution reveals a sharp break at optical wavelengths which is interpreted as a Lyα absorption edge at 6700 Å. This places GRB 000131 at a redshift of 4.500 ± 0.015.
Based on observations collected at the European Southern Observatory, La Silla and Paranal, Chile (ESO Programmes 64.H-0573, 64.H-0580, 64.O-0187, and 64.H-0313)- Publication:
-
Gamma-ray Bursts in the Afterglow Era
- Pub Date:
- 2001
- DOI:
- 10.1007/10853853_34
- Bibcode:
- 2001grba.conf..133A