Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1998-05-21
Phys.Rev. D58 (1998) 084011
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
LaTeX file, 12 pages, 4 figures
Scientific paper
10.1103/PhysRevD.58.084011
In this paper we address the issue of determining the semiclassical threshold for black hole formation in the context of a one-parameter family of theories which continuously interpolates between the RST and BPP models. We find that the results depend significantly on the initial static configuration of the spacetime geometry before the influx of matter is turned on. In some cases there is a critical energy density, given by the Hawking rate of evaporation, as well as a critical mass $m_{cr}$ (eventually vanishing). In others there is neither $m_{cr}$ nor a critical flux.
Fabbri Alessandro
Navarro-Salas Jose
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