Quasar
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High Quality Content by WIKIPEDIA articles! A quasi-stellar radio source (quasar) is a very energetic and distant galaxy with an active galactic nucleus. 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 the 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.
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GarantieWeitere Informationen
- Allgemeine Informationen
- GTIN 09786130334796
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Sprache Englisch
- Genre Physik & Astronomie
- Größe H220mm x B150mm x T8mm
- Jahr 2010
- EAN 9786130334796
- Format Kartonierter Einband
- ISBN 978-613-0-33479-6
- Titel Quasar
- Untertitel Galaxy, Active Galactic Nucleus, Redshift, Electromagnetic Radiation, Visible Spectrum, Star
- Gewicht 219g
- Herausgeber Betascript Publishers
- Anzahl Seiten 136
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