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Supermassive Black Hole Spins at Nearly the Speed of Light

03/23/2013 08:20PM

Supermassive Black Hole Spins at Nearly the Speed of Light

Imagine a sphere more than 2 million miles across, spinning so fast that its surface is traveling at nearly the speed of light. Such an object exists -- the Supermassive Black Hole at the center of the spiral galaxy NGC 1365. Astronomers measured its jaw-dropping spin rate using new data from NASA's NuSTAR and the European Space Agency's XMM-Newton X-ray satellites.


Comments:

  • JJM [James McSheehy]
  • 03/24/2013 09:40AM
AFAIK black holes do not have a surface. Mathematical models predict one or more event horizons, but these are not physical entities. <br><br>Here are a few interesting models that help visualize the odd happenings near these objects:<br><br>http://jila.colorado.edu/~ajsh/insidebh/index.html<br><br>Note that the case for the charged/spinning singularity is truly weird. <img class='' src='http://new.astromart.com/astromart/javascripts/sceditor/emoticons/grin.png' alt='grin' title='grin'/> <br><br>http://jila.colorado.edu/~ajsh/insidebh/realistic.html