کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1833903 1028224 2012 44 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electron impact collision strengths in Ne VII
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Electron impact collision strengths in Ne VII
چکیده انگلیسی

The lines of Ne VII have been observed in many astronomical objects, and some transitions from high energy levels were observed both in Seyfert galaxies and stellar coronae. Thus, the atomic data for these transitions are important for modeling. Using the code FAC we calculated the collision strengths based on the distorted-wave method with large configuration interactions included. The Maxwellian averaged effective collision strengths covering the typical temperature range of astronomical and laboratory hot plasmas are presented. We extend the calculation of the energy levels to n=4n=4 and 5. The energy levels, wavelengths, spontaneous transition rates, weighted oscillator strengths, and effective collision strengths were reported. Compared with the results from experiment or previous theoretical calculations a general agreement is found. It is found that the resonance effects are important in calculating the effective collision strengths.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atomic Data and Nuclear Data Tables - Volume 98, Issue 4, July 2012, Pages 437–480
نویسندگان
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