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The jet has been found to emit X-rays, up until 0.2 arcseconds from a radio hot spot, which could be in reality a bend of the jet. [ 5 ] The components of the jet have been found to move by about 0.25–0.42 mas, which at the distance of the jet represent apparent speeds that are 5 to 15 times faster than the speed of light . [ 6 ]
An X-ray jet has been discovered in PKS 1127-145 by Chandra X-ray Observatory. [16] With an estimated length of 300 kiloparsecs, this makes the longest one detected so far in any of the high redshift quasars. [17] Advanced CCD Imaging Spectrometer also revealed a complex structure in the X-ray jet from the core with bright knots of different ...
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
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.
This blazar was first discovered as a compact astronomical radio source in 1970 by astronomers who were conducting interferometer observations [5] and identified with an optical counterpart in 1984. [6] In addition, the radio spectrum of the source appears flat, making it a flat-spectrum radio quasar (FRSQ). [7] [8]
A third point-like lensed image of the quasar was detected in 2020, located part way between the other two. [13] PKS 1830-211 is a source for gamma-ray emission that undergoes significant flaring. [15] PKS 1830-211 has been used as a radio source for measuring redshifted molecular species, including ArH +, CF +, HCN, HCO +, H 2 O, NH 3, and OH +.
See also: Quasar, List of quasars 3C 454.3 is a blazar (a type of quasar with a jet oriented toward Earth ) located away from the galactic plane . It is one of the brightest gamma ray sources in the sky, [ 2 ] and is one of the most luminous astronomical object ever observed, with a maximum absolute magnitude of -31.4. [ 3 ]
PKS 0458-020 is found variable across the electromagnetic spectrum and a source of gamma ray activity. [7] [8] [9] It is known to show optical flares which was detected by Fermi Gamma-ray Space Telescope (Fermi LAT) [10] and by the Nordic Optical Telescope in September 2012, where it was reported to be 30 times brighter than its daily flux of (E > 100 MeV) when recorded by Fermi LAT. [11]