We have published a preprint with the confirmation using the real ephemeris of daily Earth-Sun distances that our results reported in paper Zharkova et al, 2019 are correct. The variations of the Sun-Earth distances up to 0.016 au hinted in the paper were confirmed by the S-E distance ephemeris.
Therefore, the paper Zharkova et al, 2019 has been retracted without any grounds!
Read our preprint paper and the Appendices which use the real ephemeris of the distances.
Archive paper https://arxiv.org/pdf/2008….,
Appendix 1 – the S-E distances from the ephemeris https://solargsm.com/wp-con…
Appendix 2 – solar irradiance variations based on these distance changes https://solargsm.com/wp-con…