Keyword Analysis & Research: quasar definition

wikipedia.org

https://en.wikipedia.org/wiki/Quasar

WEBA quasar ( / ˈkweɪzɑːr / 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.

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earthsky.org

https://earthsky.org/astronomy-essentials/definition-what-is-a-quasar/

WEBFeb 28, 2021 · After decades of intense study, we have another term for these objects: a quasar is a type of active galactic nucleus, or AGN . There are actually many different types of AGNs, each...

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space.com

https://www.space.com/17262-quasar-definition.html

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....

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merriam-webster.com

https://www.merriam-webster.com/dictionary/quasar

WEBFeb 20, 2024 · The meaning of QUASAR is a region at the center of a galaxy that produces an extremely large amount of radiation.

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britannica.com

https://www.britannica.com/science/quasar

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.

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dictionary.com

https://www.dictionary.com/browse/quasar

WEBNov 24, 2014 · Quasar definition: one of over a thousand known extragalactic objects, starlike in appearance and having spectra with characteristically large redshifts, that are thought to be the most distant and most luminous objects in the universe. See examples of QUASAR used in a sentence.

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skyandtelescope.org

https://skyandtelescope.org/astronomy-resources/what-is-a-quasar/

WEBSep 28, 2021 · 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. Now, the term is a catch-all for all feeding, and therefore luminous supermassive black holes, also often called active galactic nuclei .

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sentinelmission.org

https://sentinelmission.org/astronomical-objects-glossary/quasar/

WEBApr 7, 2024 · Quasars, short for quasi-stellar radio sources, are extremely bright and distant celestial objects that emit massive amounts of energy. They are considered to be the most luminous objects in the universe, outshining entire galaxies.

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cambridge.org

https://dictionary.cambridge.org/dictionary/english/quasar

WEBnoun [ C ] physics specialized uk / ˈkweɪ.zɑː r/ us / ˈkweɪ.zɑːr / Add to word list. the centre of a galaxy (= group of stars) that is very far away, producing large amounts of energy. …

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esahubble.org

https://esahubble.org/wordbank/quasar/

WEBA quasar is an extremely active and luminous type of active galactic nucleus (AGN). All quasars are AGNs, but not all AGNs are quasars. 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 ... definition

definition

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