IONeq
December 11, 2020 ยท View on GitHub
IONeq is an X-ray high-resolution photoabsorption model which compute the absorption coefficient assuming ionization equilibrium. The model takes into account turbulent broadening. A complete description of the science behind the model is described in Gatuzz & Churazov (2018).
OBTAINING IONeq
Different flavours of the model can be downloaded from the Github repository at https://github.com/efraingatuzz/IONeq. Currently versions include:
- IONeqther: A version of the model that computes optical depths assuming collisional ionization equilibrium conditions and solar abundances.
- IONeqthervar: Same as "IONthervar" but the elemental abundances are parameters of the model
- ioneqdev: latest develop version of the model.
ATOMIC DATA
We include in our model the following atomic data, in order to compute the ion fractions assuming ionization equilibrium:
- Collisional ionization: ionization rates from Voronov (1997).
- Radiative recombination: rates from Verner & Ferland (1996).
- Dielectronic recombination: rates from Arnaud & Rothenflug (1985).
- Photoionization: cross sections from Verner et al. (1996) and Auger probabilities from Kaastra & Mewe (1993).
NOTE: In order to compute the optical depth, IONeq uses the same high-resolution photoabsorption cross-sections included in the XSTAR photonionization code.
CONTACT
Please contact me with any reports or questions.