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arxiv: 0705.1312 · v4 · submitted 2007-05-09 · 🌀 gr-qc · astro-ph

Tidal Dynamics in Cosmological Spacetimes

Bahram Mashhoon , Nader Mobed , Dinesh Singh This is my paper
classification 🌀 gr-qc astro-ph
keywords tidalcosmologicaldynamicsinfluencemodelsspacetimesaccelerationsaround
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We study the relative motion of nearby free test particles in cosmological spacetimes, such as the FLRW and LTB models. In particular, the influence of spatial inhomogeneities on local tidal accelerations is investigated. The implications of our results for the dynamics of the solar system are briefly discussed. That is, on the basis of the models studied in this paper, we estimate the tidal influence of the cosmic gravitational field on the orbit of the Earth around the Sun and show that the corresponding temporal rate of variation of the astronomical unit is negligibly small.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Generic Peculiar Motions in FLRW Spacetimes

    gr-qc 2026-05 unverdicted novelty 5.0

    Boosted cosmic test masses in FLRW spacetimes produce Fermi metrics containing a circular gravitomagnetic field around their direction of motion.

  2. Generic Peculiar Motions in FLRW Spacetimes

    gr-qc 2026-05 unverdicted novelty 3.0

    Fermi coordinates around a boosted cosmic test mass in FLRW spacetime produce a circular gravitomagnetic field absent in the comoving frame.