Jul 10, 2024
Artist's impression of the active galactic nucleus. The supermassive black hole at the centre of the accretion disk sends a narrow high-energy jet of matter into space, perpendicular to the disc. Credit: DESY, Science Communication Lab
seen from Canada
seen from Spain
seen from United States
seen from Canada
seen from Malaysia
seen from Malaysia
seen from Germany
seen from United States
seen from Russia
seen from China
seen from Russia
seen from Brazil
seen from United Kingdom
seen from United States
seen from Russia
seen from Australia
seen from Canada
seen from Bolivia
seen from United States
seen from Russia
Artist's impression of the active galactic nucleus. The supermassive black hole at the centre of the accretion disk sends a narrow high-energy jet of matter into space, perpendicular to the disc. Credit: DESY, Science Communication Lab
WikiBooks: Quasars
WikiBooks: Quasars A quasi-stellar radio source ("quasar") is a very energetic and distant active galactic nucleus. Quasars are among the most luminous objects in the universe. Quasars were first identified as being high redshift sources of electromagnetic energy, including radio waves and visible light, that were point-like, similar to stars, rather than extended sources similar to galaxies. While there was initially some controversy over the nature of these objects—as recently as the early 1980s, there was no clear consensus as to their nature—there is now a scientific consensus that a quasar is a compact region in the center of a massive galaxy surrounding its central supermassive black hole. Its size is 10–10,000 times the Schwarzschild radius of the black hole. The quasar is powered by an accretion disc around the black hole. Havе this 0nе at 0nсе!m. Yοµ arё ω0rth It.