Home > Astronomy, Astrophysics, Black Holes, Cosmology, General Astronomy > New Study Suggests That Black Holes Are Growing Faster Than Previously Thought

New Study Suggests That Black Holes Are Growing Faster Than Previously Thought


The black hole that has grown the most can be found in the Sombrero galaxy. Credit: NASA/ESA

The black hole that has grown the most can be found in the Sombrero galaxy. Credit: NASA/ESA

Astronomers from Swinburne University of Technology have discovered how supermassive black holes grow – and it’s not what was expected. For years, scientists had believed that supermassive black holes, located at the centers of galaxies, increased their mass in step with the growth of their host galaxy. However, new observations have revealed a dramatically different behavior.

“Black holes have been growing much faster than we thought,” Professor Alister Graham from Swinburne’s Center for Astrophysics and Supercomputing said.

Within galaxies, there is a competition of sorts for the available gas; for either the formation of new stars or feeding the central black hole.

For more than a decade the leading models and theories have assigned a fixed fraction of the gas to each process, effectively preserving the ratio of black hole mass to galaxy mass. New research to be published in The Astrophysical Journal reveals that this approach needs to be changed.

Full Story: http://scitechdaily.com/new-study-suggests-that-black-holes-are-growing-faster-than-previously-thought/
Also: http://www.kurzweilai.net/black-holes-growing-faster-than-expected

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