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| Description: X Rays Generated by Accretion of Matter Near a Black Hole Stellar-remnant black holes, such as Cygnus X-1, LMC X-3, V404 Cygni, and probably A0620-00, are detected in close binary star systems. This drawing of the Cygnus X-1 system shows how gas from the 30-solar-mass companion star, HDE 226868, transfers to the black hole, which has at least 11 solar masses. This process creates an accretion disk. As the gas spirals inward, friction and compression heat it so much that the gas emits X rays, which astronomers can detect Picture Stats: Views: 670 Filesize: 342.66kB Height: 900 Width: 878 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=18691 |