## Photon stars

Autor(en): | Schmidt, HJ Homann, F |

Stichwörter: | Astronomy & Astrophysics; black holes; numerical solutions of Einstein's field equations; Physics; Physics, Multidisciplinary; Physics, Particles & Fields; Tolman's equation |

Erscheinungsdatum: | 2000 |

Herausgeber: | KLUWER ACADEMIC/PLENUM PUBL |

Journal: | GENERAL RELATIVITY AND GRAVITATION |

Volumen: | 32 |

Ausgabe: | 5 |

Startseite: | 919 |

Seitenende: | 931 |

Zusammenfassung: | We discuss numerical solutions of Einstein's field equation describing static, spherically symmetric conglomerations of a photon gas. These equations imply a back reaction of the metric on the energy density of the photon gas according to Tolman's equation. The 3-fold of solutions corresponds to a class of physically different solutions which is parameterized by only two quantities, i.e. mass and surface temperature. The energy density is typically concentrated on a shell because the center contains a repelling singularity, which can, however, not be reached by timelike geodesics and only by radial null geodesics. The physical relevance-of these solutions is completely open, although their existence may raise some doubts w.r.t. the stability of black holes. |

ISSN: | 00017701 |

DOI: | 10.1023/A:1001989125318 |

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