منابع مشابه
Horizon Mass Theorem Honorable Mention Gravity Research Foundation 2005
A new theorem for black holes is found. It is called the horizon mass theorem. The horizon mass is the mass which cannot escape from the horizon of a black hole. For all black holes: neutral, charged or rotating, the horizon mass is always twice the irreducible mass observed at infinity. Previous theorems on black holes are: 1. the singularity theorem, 2. the area theorem, 3. the uniqueness the...
متن کاملHairy Black Holes, Horizon Mass and Solitons
Properties of the horizon mass of hairy black holes are discussed with emphasis on certain subtle and initially unexpected features. A key property suggests that hairy black holes may be regarded as ‘bound states’ of ordinary black holes without hair and colored solitons. This model is then used to predict the qualitative behavior of the horizon properties of hairy black holes, to provide a phy...
متن کاملNegative Horizon Mass for Rotating Black Holes
Charged rotating black holes of Einstein-Maxwell-Chern-Simons theory in odd dimensions, D ≥ 5, may possess a negative horizon mass, while their total mass is positive. This surprising feature is related to the existence of counterrotating solutions, where the horizon angular velocity Ω and the angular momentum J possess opposite signs. Black holes may further possess vanishing horizon angular v...
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A perturbed Reissner-Nordström-de Sitter solution is used to emphasize the nature of the singularity along the Cauchy horizon of a charged spherically symmetric black hole. For these solutions, conditions may prevail under which the mass function is bounded and yet the curvature scalar R αβγδ R αβγδ diverges.
متن کاملOn the Rigidity Theorem for Spacetimes with a Stationary Event Horizon or a Compact Cauchy Horizon
We consider smooth electrovac spacetimes which represent either (A) an asymptotically flat, stationary black hole or (B) a cosmological spacetime with a compact Cauchy horizon ruled by closed null geodesics. The black hole event horizon or, respectively, the compact Cauchy horizon of these spacetimes is assumed to be a smooth null hypersurface which is non-degenerate in the sense that its null ...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics D
سال: 2005
ISSN: 0218-2718,1793-6594
DOI: 10.1142/s0218271805008108