On a possible connection between Chandler wobble and dark matter

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Detalles Bibliográficos
Autor principal: Portilho, Oyanarte
Fecha de Publicación: 2009
Formato: Article
Lenguaje: eng
Fuente: Repositório Institucional da UnB
Download full: http://repositorio.unb.br/handle/10482/6156
https://dx.doi.org/10.1590/S0103-97332009000100001
Sumario: 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.