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.

Forrás:

ESO

About the Image

Id:eso0321b
Típus:Observation
Közzététel napja:2003. július 16.
Related releases:eso0321
Size:1881 x 1350 px

About the Object

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

Képformátumok

Large JPEG
97,6 KB
Screensize JPEG
102,3 KB

Colours & filters

BandTelescope
OpticalESO 3.6-metre telescope
EFOSC2
Infrared
Near-IR
ESO 3.6-metre telescope
EFOSC2

 

Tekintse meg