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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.
Kredit:ESO
O snímku
| Id: | eso0321b |
| Typ: | Pozorování |
| Datum zveřejnění: | 16. července 2003 |
| Související články: | eso0321 |
| Velikost: | 1881 x 1350 px |
O objektu
| Jméno: | RXS J1131-1231 |
| Typ: | Early Universe : Galaxy : Type : Gravitationally Lensed Early Universe : Galaxy : Activity : AGN : Quasar |
| Vzdálenost: | z=0.66 (rudý posuv) |
| Kategorie: | Cosmology Galaxies Quasars and Black Holes |
Barvy & filtry
| Pásmo | Dalekohled |
|---|---|
| Infračervený Near-IR | ESO 3.6-metre telescope EFOSC2 |
| Optický | ESO 3.6-metre telescope EFOSC2 |