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The Solar Activity during the Holocene: Amplitude Variations of the Quasy-century and Quasi-two-century Solar Cycles

Published online by Cambridge University Press:  14 March 2005

Boris Komitov
Affiliation:
Institute of Astronomy, Bulgarian Academy of Sciences, PO Box 39, Bulgaria, 6003 Stara Zagora; komitov@mbox.digsys.bg
Boncho Bonev
Affiliation:
Laboratory for Extraterrestrial Physics, Code 690, NASA's Goddard Space Flight Center, Greenbelt, MD 20771; bbonev@lepvax.gsfc.nasa.gov
Kaloyan Penev
Affiliation:
Harvard University, Mail Stop 10, 60 Garden Street, Cambridge, MA 02138; kpenev@cfa.harvard.edu
Stephano Sello
Affiliation:
Mathematical and Physical Models, Enel Research, Via Andrea Pisano 120, 56122 PISA, Italy; stefano.sello@enel.it
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We summarize the recent results and prospective work in two parallel studies (Komitov; Bonev, Penev and Sello) of the long-term trends in solar variability that can be deduced from both indirect data and optical records. Analysis of data from $^{14}C$ measurements (Stuiver et al. 1998), aurorae (Schove series: Shove 1983), and direct astronomical records (group sunspot number) (Hoyt & Schatten 1998) focus on the stability and changes in amplitude of the cycles with duration near one and two centuries. Although these two projects have been carried independently and different methods have been used. We present them in a joint fashion in order to emphasize the common direction of their work.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
Contributed Papers
Copyright
© 2004 International Astronomical Union