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.

Crediti:

ESO

Riguardo l'immagine

Identificazione:eso0321b
Tipo:Osservazione
Data di rilascio:16 Luglio 2003
Notizie relative:eso0321
Grandezza:1881 x 1350 px

Riguardo all'oggetto

Nome:RXS J1131-1231
Tipo:Early Universe : Galaxy : Type : Gravitationally Lensed
Early Universe : Galaxy : Activity : AGN : Quasar
Distanza:z=0.66 (spostamento del rosso)
Categoria:Cosmology
Galaxies
Quasars and Black Holes

Formati delle immagini

JPEG grande
97,6 KB

Colori e filtri

BandaTelescopio
Infrarosso
Near-IR
ESO 3.6-metre telescope
EFOSC2
OtticoESO 3.6-metre telescope
EFOSC2