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arXiv · 1509.03164

Collision strengths and transition probabilities for Co II infrared forbidden lines

P. J. Storey·C. J. Zeippen·Taha Sochi
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Abstract

We calculate collision strengths and their thermally-averaged Maxwellian values for electron excitation and de-excitation between the fifteen lowest levels of singly-ionised cobalt, Co+, which give rise to emission lines in the near- and mid-infrared. Transition probabilities are also calculated and relative line intensities predicted for conditions typical of supernova ejecta. The diagnostic potential of the 10.52, 15.46 and 14.74 micro-metre transition lines is briefly discussed.

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P. J. Storey, C. J. Zeippen, Taha Sochi. 2015-09-10. Collision strengths and transition probabilities for Co II infrared forbidden lines. https://doi.org/10.1093/mnras%2Fstv2785

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