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Some of the next articles are maybe not open access.
2009
Abstract A black hole is an object that is inside its event horizon at r=r*: a one-way surface that particles and light can only traverse inward. This chapter studies the spherically symmetric nonrotating Schwarzschild black hole. The metric elements change their respective signs when crossing from r>r∗ to r<r*, leading to ...
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Abstract A black hole is an object that is inside its event horizon at r=r*: a one-way surface that particles and light can only traverse inward. This chapter studies the spherically symmetric nonrotating Schwarzschild black hole. The metric elements change their respective signs when crossing from r>r∗ to r<r*, leading to ...
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Mathematical Physics, 2005
Black holes are predicted by General Relativity and there has been a long search for them. Now they have been observed. General Relativity also predicts effects of high spin of the black hole. There is good reason to believe that the best known black hole is spinning more or less as rapidly as it is allowed to. Now, the search is on for the spin of the
DE PAOLIS, Francesco +3 more
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Black holes are predicted by General Relativity and there has been a long search for them. Now they have been observed. General Relativity also predicts effects of high spin of the black hole. There is good reason to believe that the best known black hole is spinning more or less as rapidly as it is allowed to. Now, the search is on for the spin of the
DE PAOLIS, Francesco +3 more
openaire +2 more sources
2000
According to the generalized second law of thermodynamics, the quantity that never decreases in irreversible processes involving gravity is the sum of the entropy content of ordinary matter plus the entropy provided by the black holes. As the entropy of matter has a statistical description in terms of microscopic degrees of freedom, it seems that the ...
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According to the generalized second law of thermodynamics, the quantity that never decreases in irreversible processes involving gravity is the sum of the entropy content of ordinary matter plus the entropy provided by the black holes. As the entropy of matter has a statistical description in terms of microscopic degrees of freedom, it seems that the ...
openaire +3 more sources
AdS black holes, holography and localization
Living Reviews in Relativity, 2020Alberto Zaffaroni
exaly
NANOGrav Data Hints at Primordial Black Holes as Dark Matter
Physical Review Letters, 2021Valerio De Luca, Gabriele Franciolini
exaly