2001/10/29 by J. P. U. Fynbo, J. Gorosabel, Javier Gorosabel +11 · 1 citation
Engineering · Physics and Astronomy · #Afterglow #Astronomy #Astronomy and Astrophysical Research #Astrophysics #CCD and CMOS Imaging Sensors #Galaxy #Gamma-ray burst #Gamma-ray bursts and supernovae #Physics #Redshift #Star formation #Telescope #astro-ph
paper · pdf · doi:10.1007/10856495_24
4 pages, 3 figures, contribution to the procedings of the conference ``Lighthouses of the Universe'' held in Garching (Germany), August 2001
arxiv created 2001/10/29 · openalex publication_date 2006/02/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In this paper we illustrate with the case of GRB 000926 how Gamma Ray Bursts (GRBs) can be used as cosmological lighthouses to identify and study star forming galaxies at high redshifts. The optical afterglow of the burst was located with optical imaging at the Nordic Optical Telescope 20.7 hours after the burst. Rapid follow-up spectroscopy allowed the determination of the redshift of the burst and a measurement of the host galaxy HI-column density in front of the burst. With late-time narrow band Ly-alpha as well as broad band imaging, we have studied the emission from the host galaxy and found that it is a strong Ly-alpha emitter in a state of active star formation.