Quasar - Wikipedia
WEBA quasar (/ ˈ k w eɪ z ɑːr / KWAY-zar) is an extremely luminous active galactic nucleus (AGN). It is sometimes known as a quasi-stellar object, abbreviated QSO. The emission from an AGN is powered by a supermassive black hole with a mass ranging from millions to tens of billions of solar masses, surrounded by a gaseous accretion disc.
Quasar | Discovery, Structure & Evolution | Britannica
WEBApr 5, 2024 · Quasar, an astronomical object of very high luminosity found in the centres of some galaxies and powered by gas spiraling at high velocity into an extremely large black hole. The brightest quasars can outshine all of the stars in the galaxies in which they reside, which makes them visible even at.
Quasars: Brightest Objects in the Universe - Space.com
WEBOct 19, 2023 · Quasars are the remarkably bright cores of active galaxies in the distant universe, they are an extreme form of what astronomers call "active galactic nuclei", or AGN for short. An active galaxy...
Quasar Framework
WEBDeveloper-oriented, front-end framework with VueJS components for best-in-class high-performance, responsive websites, PWA, SSR, Mobile and Desktop apps, all from the same codebase. Sensible people choose Vue. Productive people choose Quasar. Be both.
What is a quasar? - EarthSky
WEBFeb 28, 2021 · What is a quasar? The word quasar stands for quasi-stellar radio source. Quasars got that name because they looked starlike when astronomers first began to notice them in the late 1950s...
NASA's Webb to Study Quasars and Their Host Galaxies in Three ...
WEBAug 19, 2020 · This energy creates a brilliant and powerful galactic core called a quasar, whose light can greatly outshine its host galaxy. Quasars—accreting supermassive black holes—are paradoxically some of the brightest objects in the universe.
NASA’s Webb Will Use Quasars to Unlock the Secrets of the Early ...
WEBJun 23, 2021 · Quasars are very bright, distant and active supermassive black holes that are millions to billions of times the mass of the Sun. Typically located at the centers of galaxies, they feed on infalling matter and unleash fantastic torrents of radiation.
What Is a Quasar? - Sky & Telescope - Sky & Telescope
WEBSep 28, 2021 · A quasar is a supermassive black hole feeding on gas at the center of a distant galaxy. Quasar is short for quasi-stellar radio source, because astronomers first discovered quasars in 1963 as objects that looked like stars but emitted radio waves.
NASA's Hubble Helps Astronomers Uncover the Brightest Quasar in …
WEBJan 9, 2019 · Astronomers have discovered the brightest object ever seen from a time when the universe was less than one billion years old, with the help of NASA's Hubble Space Telescope. The brilliant beacon is a quasar, the core of a galaxy with a black hole ravenously eating material surrounding it.
Astronomy & Astrophysics 101: Quasar - SciTechDaily
WEBAug 31, 2022 · Quasars are a subclass of active galactic nuclei (AGNs), extremely luminous galactic cores where gas and dust falling into a supermassive black hole emit electromagnetic radiation across the entire electromagnetic spectrum.
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