On a possible connection between Chandler wobble and dark matter

Details On a possible connection between Chandler wobble and dark matter On a possible connection between Chandler wobble and dark matter

2008-09-26

arxiv.org/abs/0809.4506v3

Braz.J.Phys.39:1-11,2009

Astronomy and Astrophysics

Astrophysics

19 pages, 10 figures. Final version, to appear in Brazilian Journal of Physics, vol 39 (2009)

Scientific paper

Chandler wobble excitation and damping, one of the open problems in geophysics, is treated as a consequence in part of the interaction between Earth and a hypothetical oblate ellipsoid made of dark matter. The physical and geometrical parameters of such an ellipsoid and the interacting torque strength is calculated in such a way to reproduce the Chandler wobble component of the polar motion in several epochs, available in the literature. It is also examined the consequences upon the geomagnetic field dynamo and generation of heat in the Earth outer core.

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