Here is an important step forward in the progress of the Solar-Planetary theory. Some big names in the paleo-proxy field are starting to get behind this now. Beer, McCracken and Steinhilber and Ferriz-Mas are all co-authors on this new paper published in Astronomy and Astrophysics. The great news is that it is open access so well done AandA! No need for me to spend ages formatting the paper’s relevant plots and text, just click and download for discussion.
H/T Ian Wilson
Is there a planetary influence on solar activity?
J. A Abreu1;2, J. Beer2, A. Ferriz-Mas3;4, K. G. McCracken5, and F. Steinhilber2
1 ETH Zurich Institut fur Geophysik, CH-8092 Zurich, Switzerland. e-mail: jose.abreu@erdw.ethz.ch
2 Eawag, Swiss Federal Institute of Aquatic Science and Technology, Postfach 611, CH-8600 D¨ubendorf, Switzerland.
3 Departamento the Fisica Aplicada, Universidade de Vigo, Spain.
4 Instituto de Astrofisica de Andalucia (IAA/CSIC), Granada, Spain.
5 University of Maryland, USA.
Received 17 Mai 2011 Accepted 17 Mai 2011
ABSTRACT
Context. Understanding the Sun’s magnetic activity is important because of its impact on the Earth’s environment. Direct observations of the sunspots since 1610 reveal an irregular activity cycle with an average period of about 11 years, which is modulated on longer timescales. Proxies of solar activity such as 14C and 10Be show consistently longer cycles with well-defined periodicities and varying amplitudes. Current models of solar activity assume that the origin and modulation of solar activity lie within the Sun itself; however, correlations between direct solar activity indices and planetary configurations have been reported on many occasions. Since no successful physical mechanism was suggested to explain these correlations, the possible link between planetary motion and solar activity has been largely ignored.
Tallbloke's Talkshop 