A NEW APPROACH TO ANALYZING SOLAR CORONAL SPECTRA AND UPDATED COLLISIONAL IONIZATION EQUILIBRIUM CALCULATIONS. II. UPDATED IONIZATION RATE COEFFICIENTS
作者： P. Bryans , E. Landi , D. W. Savin
DOI: 10.1088/0004-637X/691/2/1540
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摘要: We have re-analyzed Solar Ultraviolet Measurement of Emitted Radiation (SUMER) observations a parcel coronal gas using new collisional ionization equilibrium (CIE) calculations. These improved CIE fractional abundances were calculated state-of-the-art electron–ion recombination data for K-shell, L-shell, Na-like, and Mg-like ions all elements from H through Zn and, additionally, Al- Ar-like Fe. They also incorporate the latest recommended electron impact Zn. Improved calculations based on these are presented here. developed systematic method determining average emission measure (EM) temperature (Te )o f an isothermal plasma. With our approach EM Te ,w e SUMER solar corona. compared results with those previous studies found some significant differences derived Te. enhancement elemental to their photospheric abundances, themselves determine abundance factor each emitting elements. Our observationally first potential factors in reasonable agreement theoretical model Laming.
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