Several input files are required for the time-dependent treatment
of hydrogen ionization. Currently, they need to be stored in the
same input directory as specified with the parameter
There are four input files:
H_6-2.atom. The module might be extended for other species in a future version.
edens.dat) as function of total number density of hydrogen in cm or , gas temperature in K, and ionization degree of hydrogen.
The first two files are always needed, whereas the files containing chemical abundances and partition functions are required the initial LTE electron densities for very first time step of a model sequence (and for creating electron density tables). Once the first time step has been calculated the last two input files are obsolete. We plan to implement another initial guess for the LTE densities so that only the model atom and the electron density look-up table are necessary.
Refer to [Leenaarts & Wedemeyer-Böhm (2005)] for more details.