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Long-term variations in solar activity and planetary configurations

Published online by Cambridge University Press:  27 November 2018

J. Javaraiah
J. Javaraiah*
Affiliation:
#58, BSK 5th Stage, Bikasipura, Bengaluru-560 078, India. email: [email protected]; [email protected]
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Abstract

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We have analyzed the data on yearly mean international sunspot number (RZ) during the period 1610 – 2015 and orbital positions (ecliptic longitudes) of the giant planets in each 10-day interval during the period 1600 – 2099. We determined mean absolute difference ($\overline{\psi _D}$) of the orbital positions of the giant planets in each interval. We find that there exits a good correlation between cycle amplitude (RM, i.e. the maximum value of RZ) and the value of $\overline{\psi _D}$ at cycle maximum, suggesting that on longer time scales low/high solar activity associated with less/large spread in orbital positions of the giant planets (i.e. with a low/high value of $\overline{\psi _D}$).

Keywords

Sun: activitySun: magnetic fields(Sun:) sunspotssolar system: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S340: Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles , February 2018 , pp. 263 - 264
Copyright
Copyright © International Astronomical Union 2018 

Footnotes

†

Formerly with Indian Institute of Astrophysics, Bengaluru-560 034.

References

Javaraiah, J., 2005, MNRAS, 362, 1311Google Scholar
Javaraiah, J., 2017, Solar Phys., 292, 172Google Scholar
Stefani, F, Giesecke, A., Weber, N., & Weier, T., 2016, Solar Phys., 291, 2197Google Scholar