Abstract
We study an approximation method of Hawking radiation. We analyze a massless scalar field in exotic black hole background models which have peculiar properties in black hole thermodynamics [a monopole black hole in the SO(3) Einstein-Yang-Mills-Higgs system and a dilatonic black hole in the Einstein-Maxwell-dilaton system]. A scalar field is assumed not to be coupled to matter fields consisting of a black hole background. Except for extreme black holes, we can approximate Hawking radiation well by a "blackbody" one with the Hawking temperature estimated at a radius of a critical impact parameter.
Original language | English |
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Article number | 107503 |
Pages (from-to) | 1-4 |
Number of pages | 4 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 62 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2000 Nov 15 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)