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arXiv 1408.3828astro-ph.SR
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CN、13 C 14 N和12 C 15 N的A2PI-X2Sigma +(红色)和{ B2Sigma +- X2Sigma }(紫色)系统的谱线列表,以及在天文光谱中的应用

Line lists for the A2PI-X2Sigma+ (red) and {B2Sigma+-X2Sigma} (violet) Systems of CN, 13C14N, and 12C15N, and Application to Astronomical Spectra

Christopher Sneden, Sara Lucatello, Ram S. Ram, James S. A. Brooke, Peter Bernath

摘要:

新的红色和紫色系统的CN同位素13 C14 N和12 C15 N的线列表已经产生。这些新的过渡数据相结合,与以前得出的12 C14 N,并适用于确定CNO丰度在太阳光球和四个红巨星:大角星,明亮的非常低金属量的恒星HD 122563,和碳增强的贫金属恒星HD 196944和HD 201626。当红色和紫色系统线都在恒星中检测到时,它们的N丰度是一致的。在这项工作中确定的平均N丰度一般也符合公布的值。

英文摘要:

New red and violet system line lists for the CN isotopologues 13C14N and 12C15N have been generated. These new transition data are combined with those previously derived for 12C14N, and applied to the determination of CNO abundances in the solar photosphere and in four red giant stars: Arcturus, the bright very low-metallicity star HD 122563, and carbon-enhanced metal-poor stars HD 196944 and HD 201626. When lines of both red and violet system lines are detectable in a star, their derived N abundances are in good agreement. The mean N abundances determined in this work generally are also in accord with published values.

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