A comprehensive and self-consistent set of new atomic data for photoionization cross sections, and pPI, total uniÐed recombination rate coefficients, of oxygen ions are obtained. The calculations are a R (T ), carried out in the close coupling approximation employing the R-matrix method. The uniÐed treatment of total recombination includes both the radiative and dielectronic processes. The analysis of astrophysical spectra and ionization balance requires atomic data for all ionization stages of… CONTINUE READING