Autoparallel orbits in Kerr Brans-Dicke spacetimes


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Cebeci H., Dereli T., Tucker R.

INTERNATIONAL JOURNAL OF MODERN PHYSICS D, vol.13, no.1, pp.137-147, 2004 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 13 Issue: 1
  • Publication Date: 2004
  • Doi Number: 10.1142/s0218271804004487
  • Journal Name: INTERNATIONAL JOURNAL OF MODERN PHYSICS D
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.137-147

Abstract

The bounded orbital motion of a massive spinless test particle in the background of a Kerr Brans-Dicke geometry is analysed in terms of worldlines that are auto-parallels of different metric compatible spacetime connections. In one case the connection is that of Levi-Civita with zero-torsion. In the second case the connection has torsion determined by the gradient of the Brans-Dicke background scalar field. The calculations permit one in principle to discriminate between these possibilities.