Spherically symmetric solutions of Einstein plus non-polynomial gravities

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Deser S., Sarioglu O., TEKİN B.

GENERAL RELATIVITY AND GRAVITATION, cilt.40, sa.1, ss.1-7, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 40 Sayı: 1
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1007/s10714-007-0508-1
  • Dergi Adı: GENERAL RELATIVITY AND GRAVITATION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1-7
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

We obtain the static spherically symmetric solutions of a class of gravitational models whose additions to the General Relativity (GR) action forbid Ricci-flat, in particular, Schwarzschild geometries. These theories are selected to maintain the (first) derivative order of the Einstein equations in Schwarzschild gauge. Generically, the solutions exhibit both horizons and a singularity at the origin, except for one model that forbids spherical symmetry altogether. Extensions to arbitrary dimension with a cosmological constant, Maxwell source and Gauss-Bonnet terms are also considered.