Aaron Dotter June 2013, March 2017 This directory contains source code and data files necessary to use the Lederer & Aringer (2009) enhanced C,N low-T opacities with MESA. Source code is under the LGPL. See included file lgpl.txt. After compiling the library, installing the data files, and using the provided run_star_extras to produce a star executable you would add use_other_kap = .true. to your controls inlist to use kapCN.