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Title:
Do Planetary Motions Drive Solar Variability?
Authors:
de Jager, Cornelis; Versteegh, Gerard J. M.
Affiliation:
AA(Royal Netherlands Institute for Sea Research), AB(Hanse Wissenschaftskolleg)
Publication:
Solar Physics, Volume 229, Issue 1, pp.175-179 (SoPh Homepage)
Publication Date:
06/2005
Origin:
SPRINGER
DOI:
10.1007/s11207-005-4086-7
Bibliographic Code:
2005SoPh..229..175D

Abstract

We examine the occasionally forwarded hypothesis that solar activity originates by planetary Newtonian attraction on the Sun. We do this by comparing three accelerations working on solar matter at the tachocline level: Those due to planetary tidal forces, to the motion of the Sun around the planetary system's centre of gravity, and the observed accelerations at that level. We find that the latter are by a factor of about 1000 larger than the former two and therefore cannot be caused by planetary attractions. We conclude that the cause of the dynamo is purely solar.
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