Cumulative Dragging - An Intrinsic Characteristic of Stationary Axisymmetric Spacetime

Details Cumulative Dragging - An Intrinsic Characteristic of Stationary Axisymmetric Spacetime Cumulative Dragging - An Intrinsic Characteristic of Stationary Axisymmetric Spacetime

1997-01-07

arxiv.org/abs/gr-qc/9701008v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Discussion of Neugebauer-Meinel rotating disk and clarifications added

Scientific paper

10.1016/S0375-9601(97)00443-X

The Cumulative Drag Index defined recently by Prasanna has been generalised to include the centrifugal acceleration. We have studied the behaviour of the drag index for the Kerr metric and the Neugebauer-Meinel metric representing a self-gravitating rotating disk and their Newtonian approximations. The similarity of the behaviour of the index for a given set of parameters both in the full and approximated forms, suggests that the index characterises an intrinsic property of spacetime with rotation. Analysing the index for a given set of parameters shows possible constraints on them.

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