Quasar (24.5 mag ;z~4) in MS 1008 Field
Multi-colour image of the field in the galaxy cluster MS 1008, with a 24.5-mag lensed quasar (arrow) observed at redshift z = 4.0 during the present study. This image was obtained by the VLT/ANTU telescope during its Science Verification phase. The photo is based on a composite of four images with exposure times and seeing conditions of 82 min and 0.72 arcsec (B band), 90 min and 0.65 arcsec (V band), 90 min and 0.64 arcsec (R band) and 67 min and 0.55 arcsec (I band), respectively. The field is 1.8 x 1.6 arcmin 2 ; North is up and East is left.
Credit:ESO
Over de afbeelding
Id: | eso0015a |
Type: | Observatie |
Publicatiedatum: | 13 april 2000 |
Gerelateerde berichten: | eso0015 |
Grootte: | 942 x 941 px |
Over het object
Naam: | MS 1008 |
Type: | Early Universe : Galaxy : Type : Gravitationally Lensed Early Universe : Galaxy : Activity : AGN : Quasar Early Universe : Galaxy : Grouping : Cluster |
Afstand: | z=0.31 (roodverschuiving) |
Categorie: | Galaxy Clusters Quasars and Black Holes |
Achtergrond
Kleuren & filters
Band | Golflengte | Telescoop |
---|---|---|
Optisch B | 420 nm | Very Large Telescope FORS1 |
Optisch V | 554 nm | Very Large Telescope FORS1 |
Optisch R | 657 nm | Very Large Telescope FORS1 |
Infrarood I | 768 nm | Very Large Telescope FORS1 |