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Twin Quasar: 1979 Lensed into 2 images The lens is a galaxy known as YGKOW G1: First quasar found with a jet with apparent superluminal motion 3C 279: 1971 [25] [26] [27] First quasar found with the classic double radio-lobe structure 3C 47: 1964 First quasar found to be an X-ray source 3C 273: 1967 [39] First "dustless" quasar found
A multiple-image quasar is a quasar whose light undergoes gravitational lensing, resulting in double, triple or quadruple images of the same quasar. The first such gravitational lens to be discovered was the double-imaged quasar Q0957+561 (or Twin Quasar) in 1979. [ 75 ]
PKS 0438-436, also known as PKS J0440-4333, is a quasar located in constellation Caelum.With a high redshift of 2.86, [1] the object is located 11.2 billion light-years from Earth [2] and is classified as a blazar due to its flat-spectrum radio source, [3] (in terms of the flux density as (F v ~ V-a) with α < 0.5 and its optical polarization.
The cosmic scale of time is long, and supermassive black holes can be thousands of light years across. Quasars, though, are on the small end of the supermassive black hole size class—sometimes ...
ULAS J1120+0641 was discovered by the UKIRT Infrared Deep Sky Survey (UKIDSS), using the UK Infrared Telescope, located in Hawaii. [10] The name of the object is derived from UKIDSS Large Area Survey (ULAS), the name of the survey that discovered the quasar, and the location of the quasar in the sky in terms of right ascension (11h 20m) and declination (+06° 41').
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