quasar Bedeutung, Definition quasar: the centre of a galaxy (= group of stars) that is very far away, producing large amounts. A quasar (/ˈkweɪzɑːr/) (also quasi-stellar object or QSO) is an active galactic nucleus of very . Because these changes occur very rapidly they define an upper limit on the volume of a quasar ; quasars are not much larger than the Solar. Quasars. Astronomers first knew they had a mystery on their hands in the s when they turned the first radio telescopes to the sky. Quasars are found over a very broad range of distances corresponding to redshifts of roughly 0. Word Origin and History for quasar Expand. Many lines of evidence optical viewing of host galaxies, finding 'intervening' absorption lines, gravitational lensing now demonstrate quasar definition the quasar redshifts are due to the Hubble expansion, and quasars are in fact as powerful as first thought. Hier finden Sie den Podcast der Duden-Sprachberatung mit Wissenswertem rund um die deutsche Sprache zum Anhören und Herunterladen. For this reason, the study of quasars can provide astronomers with information about the early stages of the universe. Christoph Heinze, Hamburg [CH3] A 29 Dr. Hans Berckhemer, Frankfurt [HB1] A, B 29 Prof. Thomas Filk, Freiburg [TF3] A 10, 15 Natalie Fischer, Walldorf [NF] A 32 Dr. Der Sprachratgeber hält Hintergrundwissen zur deutschen Sprache, von wichtigen Regeln bis zu kuriosen Phänomenen, für Sie bereit. Show me the Level 1 version of this page. Christian Eurich, Bremen [CE] A Essay Neuronale Netze Dr. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. The final survey will contain , new solar system objects, a million distant galaxies, , quasars —and about 20, exoplanets, says Gaia lead project scientist Timo Prusti. With infrared telescopes and the Hubble Space Telescope , the "host galaxies" surrounding the quasars have been detected in some cases. Browse more topics on our blog What Is the Difference Between Discreet and Discrete? This mechanism also explains why quasars were more common in the early universe, as this energy production ends when the supermassive black hole consumes all of the gas and dust near it. Beispielsätze, die 'quasar' enthalten. It's July's words in the news. Please tell us where you read or heard it including the quote, if possible.