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arXiv · 1107.0470

Fe IX Calculations for the Solar Dynamics Observatory

Adam R Foster·Paola Testa
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Abstract

New calculations of the energy levels, radiative transition rates and collisional excitation rates of \ion{Fe}{ix} have been carried out using the Flexible Atomic Code, paying close attention to experimentally identified levels and extending existing calculations to higher energy levels. For lower levels, R-matrix collisional excitation rates from earlier work have been used. Significant emission is predicted by these calculations in the 5f-3d transitions, which will impact analysis of SDO AIA observations using the 94Å filter.

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Adam R Foster, Paola Testa. 2011-09-20. Fe IX Calculations for the Solar Dynamics Observatory. https://doi.org/10.1088/2041-8205%2F740%2F2%2Fl52

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