Binary Black Hole (Illustration) : 無料・フリー素材/写真
Binary Black Hole (Illustration) / NASA Hubble
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | This is an artist's rendition of a binary black hole found in the center of the nearest quasar host galaxy to Earth, Markarian 231. The two black holes orbit each other like a pair of whirling skaters. As they do, the duo generates tremendous amounts of energy that makes the core of the host galaxy outshine the collective glow of the galaxy's billions of stars. Quasars are the luminous cores of active galaxies and are often fueled by galaxy collisions.Hubble observations of the ultraviolet light emitted from the nucleus of the galaxy were used to deduce the geometry of the disk, and astronomers were surprised to see light diminishing close to the central black hole. They deduced that a smaller companion black hole has cleared out a donut hole in the accretion disk, and the smaller black hole has its own mini-disk with an ultraviolet glow.For more information, visit: hubblesite.org/contents/news-releases/2015/news-2015-31.htmlCredit: NASA, ESA, and G. Bacon (STScI) |
| 撮影日 | 2019-08-13 12:43:53 |
| 撮影者 | NASA Hubble |
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