HOME | DD

Description
is an active galactic nucleus of very high luminosity . A quasar consists of a supermassive black hole surrounded by an orbitingaccretion disk of gas. As gas in the accretion disk falls toward the black hole, energy is released in the form of electromagnetic radiation . Quasars emit energy across the electromagnetic spectrum and can be observed at radio , infrared , visible , ultraviolet , and X-ray wavelengths. The most powerful quasars have luminosities exceeding 1041 W , thousands of times greater than the luminosity of a large galaxy such as the Milky Way .[2]
____FROM WIKIPEDIA

Description
is an active galactic nucleus of very high luminosity . A quasar consists of a supermassive black hole surrounded by an orbitingaccretion disk of gas. As gas in the accretion disk falls toward the black hole, energy is released in the form of electromagnetic radiation . Quasars emit energy across the electromagnetic spectrum and can be observed at radio , infrared , visible , ultraviolet , and X-ray wavelengths. The most powerful quasars have luminosities exceeding 1041 W , thousands of times greater than the luminosity of a large galaxy such as the Milky Way .[2]
____FROM WIKIPEDIA