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Old 07-15-2007, 12:50 PM
m_the0ry m_the0ry is offline
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Join Date: Aug 2006
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Default Re: Could a Binary Star system create a black hole w/o a singularity?

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No. Black holes are theoretically formed based on mass density, not net mass. Star A + Star B = some arbitrary mass, but unless the mass is at a high enough density in space it does not create an event horizon.

A rotating black hole does however have an ellipsoid shaped event horizon.

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Does that necessarily imply 2 singularities? And is that the only way that we can tell that they're rotating?

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No, rather it has to do with frame-dragging, a relativistic effect.
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