Spectra of the RXS J1131-1231 lensing system

The spectra of two of the star-like images in the gravitational lens system RXS J1131-1231 (labeled A and D in the top panel) are very similar and are therefore from the same object, i.e., the lensed quasar. The emission lines identified in these spectra are typical of a quasar and the redshft is measured as z = 0.66. The bottom panel shows the spectrum of the lensing, elliptical galaxy at redshift z=0.3.

Crédit:

ESO

À propos de l'image

Identification:eso0321b
Type:Observation
Date de publication:16 juillet 2003
Communiqués de presse en rapport:eso0321
Taille:1881 x 1350 px

À propos de l'objet

Nom:RXS J1131-1231
Type:Early Universe : Galaxy : Type : Gravitationally Lensed
Early Universe : Galaxy : Activity : AGN : Quasar
Distance:z=0.66 (redshift)
Catégorie:Cosmology
Galaxies
Quasars and Black Holes

Image Formats

Grand JPEG
97,6 Kio
JPEG taille écran
102,3 Kio

Couleurs & filtres

DomaineTélescope
VisibleESO 3.6-metre telescope
EFOSC2
Infrarouge
Near-IR
ESO 3.6-metre telescope
EFOSC2

 

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