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Stellar Pulsations excited by a scattered mass

V. Ferrari·L. Gualtieri·A. Borrelli
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Abstract

We compute the energy spectra of the gravitational signals emitted when a mass m is scattered by the gravitational field of a star of mass M >> m. We show that, unlike black holes in similar processes, the quasi-normal modes of the star are excited, and that the amount of energy emitted in these modes depends on how close the exciting mass can get to the star.

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V. Ferrari, L. Gualtieri, A. Borrelli. 1999-01-22. Stellar Pulsations excited by a scattered mass. https://doi.org/10.1103/physrevd.59.124020

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