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)

Credit:

ESO

Over de afbeelding

Id:eso8712a
Type:Collage
Publicatiedatum:15 juli 1987
Gerelateerde berichten:eso8712
Grootte:1872 x 972 px

Over het object

Naam:PKS 1145-071 , QSO B1145-071
Type:Early Universe : Star : Grouping : Binary
Early Universe : Galaxy : Activity : AGN : Quasar
Afstand:z=1.342 (roodverschuiving)
Categorie:Cosmology
Quasars and Black Holes
Stars

Image Formats

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