Quasar
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| Archivo:Artist's redering ULAS J1120+0641.jpg Artist's rendering of ULAS J1120+0641, a very distant quasar powered by a black hole with a mass two billion times that of the Sun. Credit: ESO/M. Kornmesser |
A quasi-stellar radio source ("quasar") is a very energetic and distant active galactic nucleus. Quasars are extremely luminous and 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.
- Related: BL Lac object, Microquasar, Radio galaxy
| Formation of quasars (Heymann, 2010) Formation of quasars (Heymann, 2010) fr.calameo.com/books/000145333186209bbc0f5 - Web |
| 3C 273: Variable Star Of The Season 3C 273: Variable Star Of The Season www.aavso.org/vstar/vsots/ - Web |
| SKY-MAP.ORG SDSS image of quasar 3C 273 SKY-MAP.ORG SDSS image of quasar 3C 273 www.sky-map.org/?object=3C%20273&zoom=12&img_source=SDSS - Web |
Gallery for «Quasar»
- HE01514326.jpg
- Artist's redering ULAS J1120+0641.jpg
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| Expanding Gallery of Hires Quasar Images Expanding Gallery of Hires Quasar Images www.perseus.gr/Astro-DSO-Quasars.htm - Web |
| Gallery of Quasar Spectra from SDSS Gallery of Quasar Spectra from SDSS www.sdss.org/gallery/gal_zqso.html - Web |
| SDSS Advanced Student Projects: Quasars SDSS Advanced Student Projects: Quasars cas.sdss.org/dr6/en/proj/advanced/quasars/default.asp - Web |
| Black Holes: Gravity's Relentless Pull Black Holes: Gravity's Relentless Pull www.hubblesite.org/go/blackholes - Web |
| Research Sheds New Light On Quasars Research Sheds New Light On Quasars www.spacedaily.com/.../Research_Sheds_New_Light_On_Quasars_999.html - Web |
| Audio: Fraser Cain/Pamela L. Gay - Astronomy Cast.... Audio: Fraser Cain/Pamela L. Gay - Astronomy Cast. Quasars - July 2008 www.astronomycast.com/astronomy/galaxies/ep-98-quasars/ - Web |
