I see the pdf here:
https://iopscience.iop.org/article/10.3847/1538-3881/aba94d/pdf
It is open access
Cheers – Tim
British Astronomical Association
Supporting amateur astronomers since 1890
Supporting amateur astronomers since 1890
I see the pdf here:
https://iopscience.iop.org/article/10.3847/1538-3881/aba94d/pdf
It is open access
Cheers – Tim