Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-08-17
Phys.Lett.B490:1-5,2000
Astronomy and Astrophysics
Astrophysics
Scientific paper
10.1016/S0370-2693(00)00987-4
In light of recent evidence suggesting a nonzero present-day cosmological constant, Adams, Mbonye, & Laughlin (1999) have considered the evolution of black holes in the presence of vacuum energy. Using the assumption that Lambda remains constant with time, and a conjecture based on a paper by Mallett (1986), they reach the remarkable conclusion that black holes with current mass greater than about 2*10^(-9) Msun will not Hawking evaporate in the distant future, but will instead absorb vacuum energy and grow to roughly the de Sitter horizon size. In this letter we reexamine black hole evaporation in the presence of vacuum energy, and find instead that all known black holes will eventually evaporate.
Dalal Neal
Griest Kim
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