Discovery of a binary quasar

The radio map and visible-light image of the binary quasar QQ 1145-071. The two components are labeled as A and B. The right-hand picture, obtained with a charge-coupled device detector at the European Southern Observatory, La Silla, Chile, is the first observational evidence of the binary nature of the object. The picture to the left, showing radio emission in only the A component, allows astronomers to rule out the gravitational lens hypothesis in favour of the genuine binary character of the double source. (ESO Press Release eso8712; BW)

Crédit:

ESO

À propos de l'image

Identification:eso8712a
Type:Collage
Date de publication:15 juillet 1987
Communiqués de presse en rapport:eso8712
Taille:1872 x 972 px

À propos de l'objet

Nom:PKS 1145-071 , QSO B1145-071
Type:Early Universe : Star : Grouping : Binary
Early Universe : Galaxy : Activity : AGN : Quasar
Distance:z=1.342 (redshift)
Catégorie:Cosmology
Quasars and Black Holes
Stars

Formats des images

Grand JPEG
243,7 Kio