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Like all (unobscured) active galaxies, quasars can be strong X-ray sources. Radio-loud quasars can also produce X-rays and gamma rays by inverse Compton scattering of lower-energy photons by the radio-emitting electrons in the jet. [52] Iron quasars show strong emission lines resulting from low-ionization iron (Fe II), such as IRAS 18508-7815.
The quasar's host galaxy is also lensed into a Chwolson ring about the lensing galaxy. The four images of the quasar are embedded in the ring image. Cloverleaf: 4 [3] Brightest known high-redshift source of CO emission [4] QSO B1359+154: 6 CLASS B1359+154 and three more galaxies First sextuply-imaged galaxy SDSS J1004+4112 5 Galaxy cluster at z ...
The luminous cores of distant, ancient galaxies, quasars expel jets of energetic matter. With the help of two powerful radio telescopes, astronomers spotted the gigantic two-lobed jet, which spans ...
Contains about 56,000 galaxies, located 820 million light years away. BOSS Great Wall (BGW) (2016) 1,000,000,000: Structure consisting of 4 superclusters of galaxies. The mass and volume exceeds the amount of the Sloan Great Wall. [22] Perseus–Pegasus Filament (1985) 1,000,000,000: This galaxy filament contains the Perseus–Pisces Supercluster.
Scientists using the observatory have discovered a tightly-packed "knot" of at least three galaxies that were forming around a quasar 11.5 billion years ago, just over 2 billion years after the ...
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 ...
Markarian 231 (UGC 8058) is a Type-1 Seyfert galaxy that was discovered in 1969 as part of a search of galaxies with strong ultraviolet radiation. It contains the nearest known quasar . [ 4 ] Markarian 231 is located about 581 million light years away from Earth , in the constellation of Ursa Major .
A large quasar group (LQG) is a collection of quasars (a form of supermassive black hole active galactic nuclei) that form what are thought to constitute the largest astronomical structures in the observable universe. LQGs are thought to be precursors to the sheets, walls and filaments of galaxies found in the relatively nearby universe. [1]