Black holes in an expanding universe

Gary W. Gibbons, Kei Ichi Maeda

研究成果: Article

43 引用 (Scopus)

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An exact solution representing black holes in an expanding universe is found. The black holes are maximally charged and the universe is expanding with arbitrary equation of state (P=wρ with -1≤zolution of the Einstein-scalar-Maxwell system, in which we have two Maxwell-type U(1) fields coupled to the scalar field. The potential of the scalar field is an exponential. We find a regular horizon, which depends on one parameter [the ratio of the energy density of U(1) fields to that of the scalar field]. The horizon is static because of the balance on the horizon between gravitational attractive force and U(1) repulsive force acting on the scalar field. We also calculate the black hole temperature.

元の言語English
記事番号131101
ジャーナルPhysical Review Letters
104
発行部数13
DOI
出版物ステータスPublished - 2010 4 2

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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