### 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 |

Publication status | Published - 2000 Nov 15 |

### ASJC Scopus subject areas

- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)

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## Cite this

Tamaki, T., & Maeda, K. I. (2000). Estimating Hawking radiation for exotic black holes.

*Physical Review D - Particles, Fields, Gravitation and Cosmology*,*62*(10), 1-4. [107503].