OVV quasar

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Artist’s impression of the optically violent variable quasar 3C 279.[1]

An optically violent variable quasar (often abbreviated as OVV quasar) is a type of highly variable quasar. It is a subtype of blazar that consists of a few rare, bright radio galaxies, whose visible light output can change by 50% in a day.[2]

They are similar in appearance to BL Lacs but generally have a stronger broad emission line, and tend to have higher red shift components.[citation needed]



  1. ^ "APEX takes part in sharpest observation ever". ESO Press Release. Retrieved 18 July 2012. 
  2. ^ Darling, David. 2004. The Universal Book of Astronomy.