0437055 - ASÚ 2015 RIV US eng J - Journal Article
Dzifčáková, Elena - Dudík, J.
H to Zn Ionization Equilibrium for the Non-Maxwellian Electron kappa-distributions: Updated Calculations.
Astrophysical Journal Supplement Series. Roč. 206, č. 1 (2013), 6/1-6/9. ISSN 0067-0049. E-ISSN 1538-4365
R&D Projects: GA ČR GAP209/12/1652; GA MŠMT 7AMB12SK154
Grant - others:SAV(SK) Vega 1/0240/11
Institutional support: RVO:67985815
Keywords : atomic data * atomic processes * radiation mechanisms
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics

New data for the calculation of ionization and recombination rates have been published in the past few years, most of which are included in the CHIANTI database. We used these data to calculate collisional ionization and recombination rates for the non-Maxwellian kappa-distributions with an enhanced number of particles in the high-energy tail, which have been detected in the solar transition region and the solar wind. Ionization equilibria for elements H to Zn are derived. The kappa-distributions significantly influence both the ionization and recombination rates and widen the ion abundance peaks. In comparison with the Maxwellian distribution, the ion abundance peaks can also be shifted to lower or higher temperatures. The updated ionization equilibrium calculations result in large changes for several ions, notably Fe VIII-Fe XIV. The results are supplied in electronic form compatible with the CHIANTI database.
Permanent Link: http://hdl.handle.net/11104/0240644