Effective collision strengths for electron-impact excitation of nitrogen-like Mg vi
نویسندگان
چکیده
منابع مشابه
Electron-impact excitation of Sc II: collision strengths and effective collision strengths for fine-structure transitions
Accurate fine-structure atomic data for the Fe-peak elements are essential for interpreting astronomical spectra. There is a severe paucity of data available for Sc II, highlighted by the fact that no collision strengths are readily available for this ion. We present electron-impact excitation collision strengths and Maxwellian averaged effective collision strengths for Sc II. The collision str...
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A pulsed crossed beam technique is used to measure ionization cross-sections of metallic atoms. Relative values of cross-sections of single, double and triple ionization of magnesium have been successfully measured with good accuracy over the 0-700 eV range. Absolute values of cross-sections have been obtained by normalization to a theoretical value at high electron energy. Results are compared...
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ژورنال
عنوان ژورنال: Astronomy and Astrophysics Supplement Series
سال: 1997
ISSN: 0365-0138,1286-4846
DOI: 10.1051/aas:1997241