Correction to: Nature Astronomy https://doi.org/10.1038/s41550-020-1142-z, published online 21 September 2020.

In the version of this Letter originally published, the present address of Rafael Brahm, ‘Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Peñalolén, Chile’, was not listed. This has now been corrected.