June 30, 2008
Posted by Paul
QUOTE: "It supports the contention that the level of activity on the Sun
will significantly diminish sometime in the next decade and remain low
for about 20 - 30 years. On each occasion that the Sun has done this in
the past the World's mean temperature has dropped by ~ 1 - 2 C."
A new paper entitled: Does a Spin-Orbit Coupling Between the Sun and the
Jovian Planets Govern the Solar Cycle? by Wilson et al has been
published.
The Abstract states:
We present evidence to show that changes in the Sun's equatorial
rotation rate are synchronized with changes in its orbital motion about
the barycentre of the Solar System. We propose that this synchronization
is indicative of a spin-orbit coupling mechanism operating between the
Jovian planets and the Sun. However, we are unable to suggest a
plausible underlying physical cause for the coupling. Some researchers
have proposed that it is the period of the meridional flow in the
convective zone of the Sun that controls both the duration and strength
of the Solar cycle. We postulate that the overall period of the
meridional flow is set by the level of disruption to the flow that is
caused by changes in Sun's equatorial rotation speed. Based on our claim
that changes in the Sun's equatorial rotation rate are synchronized with
changes in the Sun's orbital motion about the barycentre, we propose
that the mean period for the Sun's meridional flow is set by a Synodic
resonance between the flow period (~22.3 yr), the overall 178.7-yr
repetition period for the solar orbital motion, and the 19.86-yr synodic
period of Jupiter and Saturn.
...
http://www.jennifermarohasy.com/blog/archives/003210.html
