Cumulative Dragging - An Intrinsic Characteristic of Stationary Axisymmetric Spacetime
نویسندگان
چکیده
The Cumulative Drag Index defined recently by Prasanna [1] 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. PACS: 04.20.Cv, 04.20.Ex, 04.40.Dg 1 E-mail: [email protected] 2 E-mail: [email protected] Preprint submitted to Elsevier Preprint 7 February 2008
منابع مشابه
Cumulative Dragging - An Intrinsic Characteristic of Stationary Spacetime
The Cumulative Drag Index defined recently by Prasanna [1] has been generalised to include the centrifugal acceleration. We have studied the behaviour of the drag index in the Kerr metric as well as in the linearized Kerr and its Newtonian approximations. This analysis suggests that the drag index characterises an intrinsic property of spacetime with rotation. PACS: 04.20.Cv, 04.20.Ex, 04.40.Dg
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