The Kerr varieties of these objects are defined as exact solutions to the Einstein field equations. The Reissner-Nordström varieties have angular momentum of zero, and if they have zero charge as well, it can be shown that they have constant density, and they are of the Schwarzschild variety. Eternal ones are massless. The Bekenstein-Hawking formul
The Kerr varieties of these objects are defined as exact solutions to the Einstein field equations. The Reissner-Nordström varieties have angular momentum of zero, and if they have zero charge as well, it can be shown that they have constant density, and they are of the Schwarzschild variety. Eternal ones are massless. The Bekenstein-Hawking formula can be used to calculate their entropy. The centrifugal force sometimes reverses direction in the vicinity of these objects. For 10 points, identify these cosmological objects that emit Hawking radiation, singularities surrounded by event horizons.
The Kerr varieties of these objects are defined as exact solutions to the Einstein field equations.
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