Updated calculations of the ionization equilibrium for the non-Maxwellian electron n-distributions in solar flares

0470176 - ASÚ 2017 RIV GB eng C - Conference Paper (international conference)
Dzifčáková, Elena - Dudík, Jaroslav
Updated calculations of the ionization equilibrium for the non-Maxwellian electron n-distributions in solar flares.
Solar and Stellar Flares and their Effects on Planets. Cambridge: Cambridge University Press, 2016, s. 243-245. Proceedings of the International Astronomical Union, IAU S320. ISBN 9781107137578.
[Symposium of the International Astronomical Union /320./. Honolulu (US), 11.08.2015-14.08.2015]
R&D Projects: GA ČR GAP209/12/1652
Institutional support: RVO:67985815
Keywords : Sun * flares * hydrodynamics
OECD category: Astronomy (including astrophysics,space science)

The assumption of an equilibrium (Maxwellian) distribution of electron energies cannot explain observed high intensities of the Si XIId satellite lines relative to the Si XIII allowed lines during the flares. However, the presence of n-distribution with a higher and narrower shape than the Maxwellian one is able to explain this behavior. We calculated the ionization equilibrium for the non-thermal n-distributions using the latest atomic data for each element up to the proton number of 30. Significant changes in the shape and maxima of the ion abundance peak occur and can strongly influence the temperature diagnostics.

Permanent Link: http://hdl.handle.net/11104/0267879