The primary format of output data for XSTAR is FITS. The files generated by a typical XSTAR run are described below.
Users of version 1 will recognize that the freedom to choose the output format has been eliminated in the interests of simplicity. The most important physical quantities, such as line and continuum luminosities, ion abundances, and temperature are output automatically to fits files. In addition, a concise summary of the radial temperature and ionization structure is output to both the screen and a log file. The user has the freedom to select an additional detailed fits output of level populations by setting an input switch.