Xstar atomic database: the PyXstar package Claudio Mendoza, Timothy R. Kallman, Ralf Ballhausen, Anna Ogorzałek, Randall Dannen and Javier A. García Eur. Phys. J. D, 78 7 (2024) 93 Published online: 09 July 2024 DOI: 10.1140/epjd/s10053-024-00879-7