Some Simple Black Hole Thermodynamics
2003; American Association of Physics Teachers; Volume: 41; Issue: 5 Linguagem: Inglês
10.1119/1.1571268
ISSN1943-4928
Autores Tópico(s)Black Holes and Theoretical Physics
ResumoIn his recent popular book The Universe in a Nutshell, Steven Hawking gives expressions for the entropy1 and temperature (often referred to as the “Hawking temperature”2 ) of a black hole:3 S = kc34ℏG A T = ℏc38πkGM, where A is the area of the event horizon, M is the mass, k is Boltzmann's constant, ℏ = h2π (h being Planck's constant), c is the speed of light, and G is the universal gravitational constant. These expressions can be used as starting points for some interesting approximations on the thermodynamics of a Schwarzschild black hole, of mass M, which by definition is nonrotating and spherical with an event horizon of radius R = 2GMc2.4,5
Referência(s)