TY - RPRT TI - Quantitative comparison of opacities calculated using the R -matrix and distorted-wave methods: Fe xvii AU - Delahaye, F. AU - Ballance, C. P. AU - Smyth, R. T. AU - Badnell, N. R. PY - 2021 DO - 10.1093/mnras/stab2016 UR - https://www.osti.gov/biblio/1822558 ID - 1822558 ER -