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> Supermassive Black hole - Artist view

Supermassive Black hole - Artist view

author: Nasa/JPL-Caltech/Novapix

reference: a-blh01-00030

Image Size 300 DPI: 37 * 20 cm

This artist's concept illustrates a supermassive black hole with millions to billions times the mass of our sun. Supermassive black holes are enormously dense objects buried at the hearts of galaxies. (Smaller black holes also exist throughout galaxies.) In this illustration, the supermassive black hole at the center is surrounded by matter flowing onto the black hole in what is termed an accretion disk. This disk forms as the dust and gas in the galaxy falls onto the hole, attracted by its gravity. Also shown is an outflowing jet of energetic particles, believed to be powered by the black hole's spin. The regions near black holes contain compact sources of high energy X-ray radiation thought, in some scenarios, to originate from the base of these jets. This high energy X-radiation lights up the disk, which reflects it, making the disk a source of X-rays. The reflected light enables astronomers to see how fast matter is swirling in the inner region of the disk, and ultimately to measure the black hole's spin rate.

Keywords for this photo:

2014 - ASTRONOMY - BLACK HOLE - DISK - GALACTIC BLACK HOLE - GALAXY - ILLUSTRATION - SPACETIME - SUPERMASSIVE BLACK HOLE -