Photoionization and photodissociation rates in solar and blackbody radiation fields

• Photo rate coefficients for ionization and dissociation are tabulated for atoms, molecules, and ions.
• Radiation fields are for the quiet and the active Sun and for blackbodies at selected temperatures.
• Associated excess energies of the photo products are tabulated.
• Users can interactively access this information on our website http://phidrates.space.swri.edu.

Rate coefficients for ionization and dissociation have been calculated for over 140 atomic, molecular, and ionic species in the radiation fields of (1) the quiet and the active Sun at 1 AU heliocentric distance and (2) blackbodies at four selected temperatures in the range from T=1000 K to 1,000,000 K without factors for radiation dilution with distance from the source. The rate coefficients in units of transitions per second (s−1s−1) and associated excess energies of the photo products in eV are tabulated for about 265 ionization, dissociation, and dissociative ionization branches. Users can interactively access this information and plot and download cross sections and wavelength-binned results for various solar activities and blackbody temperatures on our website http://phidrates.space.swri.edu.