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arXiv:astro-ph/0011364 (astro-ph)
[Submitted on 20 Nov 2000 (v1), last revised 30 Nov 2000 (this version, v2)]

Title:Gravitational waves emitted by solar-type stars excited by orbiting planets

Authors:Emanuele Berti, Valeria Ferrari (Dipartimento di Fisica "G.Marconi", Universita' di Roma "La Sapienza")
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Abstract: The possibility of exciting the g-modes of a solar-type star as a consequence of the gravitational interaction with a close companion (a planet or a brown dwarf) is studied by a perturbative approach. The amplitude of the emitted gravitational wave is computed and compared with the quadrupole emission of the system, showing that in some cases it can be considerably larger. The effects of radiation reaction are considered to evaluate the timescale of the emission process, and a Roche lobe analysis is used to establish the region where the companion can orbit without being disrupted by tidal interactions with the star.
Comments: 19 pages, 1 figure, submitted to Phys. Rev. D. Typo in formula (5.4) corrected
Subjects: Astrophysics (astro-ph); General Relativity and Quantum Cosmology (gr-qc)
Cite as: arXiv:astro-ph/0011364
  (or arXiv:astro-ph/0011364v2 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/0011364
Journal reference: Phys.Rev. D63 (2001) 064031
Related DOI: https://doi.org/10.1103/PhysRevD.63.064031

Submission history

From: Emanuele Berti [view email]
[v1] Mon, 20 Nov 2000 17:56:22 UTC (17 KB)
[v2] Thu, 30 Nov 2000 17:37:17 UTC (17 KB)
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