Thursday, June 5, 2014

ScienceDaily: Black Holes News

ScienceDaily: Black Holes News

Surprisingly strong magnetic fields can match black holes' pull: Long-neglected magnetic fields have an unexpected presence

Posted: 04 Jun 2014 10:38 AM PDT

A new study of supermassive black holes at the centers of galaxies has found magnetic fields play an impressive role in the systems' dynamics. In fact, in dozens of black holes surveyed, the magnetic field strength matched the force produced by the black holes' powerful gravitational pull.

Black hole 'batteries' keep blazars going and going

Posted: 04 Jun 2014 06:41 AM PDT

Astronomers studying two classes of black-hole-powered galaxies have found evidence that they represent different sides of the same cosmic coin. By unraveling how these objects, called blazars, are distributed throughout the universe, the scientists suggest that apparently distinctive properties defining each class more likely reflect a change in the way the galaxies extract energy from their central black holes.
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