And as is the case with all galaxies, they are believed to contain at their centers' quasars
and supermassive black holes.
can eject material at high speeds, possibly helping to drive the blowout and regulate star formation in their host galaxies.
This, in turn, causes the galaxy centre to emit huge amounts of radiation, making quasars
the most luminous and active objects in the Universe.
are luminous disks of gas and dust swirling around supermassive black holes.
PEKyN (CyHAN)- A research team led by Chinese astronomers has discovered the most luminous supermassive quasar
, a shining object produced by the black hole, ever found in the distant universe.
generate enough light to be seen across the observable universe.
are generally believed to be extremely luminous galactic centers powered by supermassive black holes with masses up to billions of solar masses [9-13].
If this is the case, this discovery casts doubt on the whole idea that quasars
are very far away and can be used to do cosmology.
Fan discovered the distant quasars
, which are compact but luminous objects thought to be powered by supermassive black holes.
The team studied an assortment of quasars
near the edge of the observable universe using the Gemini North Telescope on Hawaii's Mauna Kea.
Scientists taking part in an international research project have identified two quasars
as the most distant objects ever observed, according to results presented by Sloan Digital Sky Survey (SDSS) scientists to the American Astronomical Society.
are bright emitters of light and radio waves.
Its array of exquisitely polished and aligned mirrors will allow X-ray astronomers to produce previously unattainable images of celestial phenomena such as quasars
, black holes, remnants of exploding stars and clouds of multimillion-degree gas that comprise clusters of galaxies.
(short for quasi-stellar radio sources) have been objects of intrigue for astronomers ever since they were first detected in the 1960s.
TEHRAN (FNA)- New work from a team led by Carnegie's Eduardo BaEados has discovered 63 new quasars
from when the universe was only a billion years old.