Gravitomagnetic time-varying effects on the motion of a test particle |
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Authors: | Matteo Luca Ruggiero and Lorenzo Iorio |
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Institution: | 1.UTIU, Università Telematica Internazionale Uninettuno,Roma,Italy;2.Dipartimento di Fisica,Politecnico di Torino,Torino,Italy;3.INFN-Sezione di Pisa,Bari,Italy |
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Abstract: | We study the effects of a time-varying gravitomagnetic field on the motion of test particles. Starting from recent results,
we consider the gravitomagnetic field of a source whose spin angular momentum has a linearly time-varying magnitude. The acceleration
due to such a time-varying gravitomagnetic field is considered as a perturbation of the Newtonian motion, and we explicitly
evaluate the effects of this perturbation on the Keplerian elements of a closed orbit. The theoretical predictions are compared
with actual astronomical and astrophysical scenarios, both in the solar system and in binary pulsars systems, in order to
evaluate the impact of these effects on real systems. |
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Keywords: | |
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