Correction to: Nature Astronomy https://doi.org/10.1038/s41550-021-01404-1, published online 5 July 2021.

In the version of this Article originally published, Weiguang Cui was missing the affiliation “Department of Astronomy, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China”; it has now been added and the affiliations renumbered accordingly. All versions of the Article have been amended.