Full paper is here: https://iopscience.iop.org/article/10.3847/1538-4357/ac3f3a https://iopscience.iop.org/article/10.3847/1538-4357/ac3f3a (AAS journals are n

Full paper is here: https://iopscience.iop.org/article/10.3847/1538-4357/ac3f3a https://iopscience.iop.org/article/10.3847/1538-4357/ac3f3a (AAS journals are now completely open access, so no paywall.)