Retraction Note: Oscillations of the baseline of solar magnetic field and solar irradiance on a millennial timescale
V V Zharkova
S J Shepherd
S I Zharkov
E Popova
Corresponding author.
Collection date 2020.
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Retraction of:Scientific Reports 10.1038/s41598-019-45584-3, published online 24 June 2019
The Editors have retracted this Article.
After publication, concerns were raised regarding the interpretation of how the Earth-Sun distance changes over time and that some of the assumptions on which analyses presented in the Article are based are incorrect.
The analyses presented in the section entitled “Effects of SIM on a temperature in the terrestrial hemispheres” are based on the assumption that the orbits of the Earth and the Sun about the Solar System barycenter are uncorrelated, so that the Earth-Sun distance changes by an amount comparable to the Sun-barycenter distance. Post-publication peer review has shown that this assumption is inaccurate because the motions of the Earth and the Sun are primarily due to Jupiter and the other giant planets, which accelerate the Earth and the Sun in nearly the same direction, and thereby generate highly-correlated motions in the Earth and Sun. Current ephemeris calculations [1,2] show that the Earth-Sun distance varies over a timescale of a few centuries by substantially less than the amount reported in this article. As a result the Editors no longer have confidence in the conclusions presented.
S. I. Zharkov agrees with the retraction. V. V. Zharkova, E. Popova, and S. J. Shepherd disagree with the retraction.
References
- 1.Folkner, W. M., Williams, J. G., Boggs, D. H., Park, R.S. & Kuchynka, P. The Planetary and Lunar Ephemerides DE430 and DE431. The Interplanetary Network Progress Report, Volume 42–196, February 15, 2014.
- 2.JPL Horizons on-line solar system data,https://ssd.jpl.nasa.gov/?horizons.