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arXiv:astro-ph/9803097astro-ph

The influence of the cosmological expansion on local systems

F. I. Cooperstock, V. Faraoni, D. N. Vollick

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Abstract

Following renewed interest, the problem of whether the cosmological expansion affects the dynamics of local systems is reconsidered. The cosmological correction to the equations of motion in the locally inertial Fermi normal frame (the relevant frame for astronomical observations) is computed. The evolution equations for the cosmological perturbation of the two--body problem are solved in this frame. The effect on the orbit is insignificant as are the effects on the galactic and galactic--cluster scales.

arXiv comments
To appear in the Astrophysical Journal, Latex
Journal reference
Astrophys.J. 503 (1998) 61
DOI
doi:10.1086/305956
Subjects
astro-phAstrophysics gr-qcGeneral Relativity and Quantum Cosmology

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    • I'm afraid I'm gonna have to drop the ball on discussion of extended objects. I can't shake the seeming-realization that restorative forces within the extended object must generate a gravitational backreaction, and down that path lies too much math to write down first (in order…

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    • > "usable link" How much technical detail do you want? Starting with the "gimme hardcore!" end, I was thinking of how to construct an argument using vierbiens and then how to boil it down to something accessible (or at least representable on LaTeX-free HN), and then remembered…

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