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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.
Credit:ESO
Over de afbeelding
| Id: | eso0321b |
| Type: | Observatie |
| Publicatiedatum: | 16 juli 2003 |
| Gerelateerde berichten: | eso0321 |
| Grootte: | 1881 x 1350 px |
Over het object
| Naam: | RXS J1131-1231 |
| Type: | Early Universe : Galaxy : Type : Gravitationally Lensed Early Universe : Galaxy : Activity : AGN : Quasar |
| Afstand: | z=0.66 (roodverschuiving) |
| Categorie: | Cosmology Galaxies Quasars and Black Holes |
Kleuren & filters
| Band | Telescoop |
|---|---|
| Infrarood Near-IR | ESO 3.6-metre telescope EFOSC2 |
| Optisch | ESO 3.6-metre telescope EFOSC2 |