Spectrum of the optical counterpart of GRB 000131

This image shows the spectrum of the afterglow of GRB 000131, obtained during a 3-hr exposure with the FORS1 multi-mode instrument at VLT ANTU on February 8, 2000. The "Lyman-alpha break" at wavelength 670.1 nm is indicated.

Technical information: The spectrum was obtained during a 3-hr exposure with the FORS1 multi-mode instrument at VLT ANTU on February 8, 2000, when the object's magnitude was only R = 25.3. The mean levels of the spectral continua on either side of the redshifted "Lyman-alpha break" at wavelength 670.1 nm are indicated.

Crédit:

ESO

À propos de l'image

Identification:eso0034c
Type:Observation
Date de publication:17 octobre 2000
Communiqués de presse en rapport:eso0034
Taille:2605 x 2109 px

À propos de l'objet

Nom:GRB 000131
Type:Early Universe : Cosmology : Phenomenon : Gamma Ray Burst
Distance:z=4.5 (redshift)
Catégorie:Cosmology

Image Formats

Grand JPEG
69,3 Kio

Couleurs & filtres

DomaineTélescope
VisibleVery Large Telescope
FORS1

Exposure time: 10800s