Relation between CH cation and neutral/molecular hydrogen (Research Note)
Relation between CH cation and neutral/molecular hydrogen (Research Note)
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CH 阳离子与中性/分子氢之间的关系（研究报告）
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
J. Krełowski
中科院分区：
文献类型：
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作者：
T. Weselak;G. Galazutdinov;F. Musaev;J. Krełowski
利用对CH+分子3957和4232 A的星际吸收带的观测，确定了53颗恒星的柱状密度。之所以选择靶子，是因为公布了原子和分子氢柱密度。关于CH+的数据是用位于南北半球的四个梯形光谱仪获得的。CH+的柱密度与分子、原子和总氢的柱密度之间的空间关系表现出很大的分散性，这表明亚甲基阳离子的丰度与氢的丰度之间没有任何形式的关系。
Observations of interstellar absorption bands of CH + molecule at 3957 and 4232 A were applied to determine column densities toward 53 stars. The targets were selected because the atomic and molecular hydrogen column densities are published. The data on CH + were acquired using four echelle spectrographs situated in both the Northern and Southern hemispheres. Spatial relations between column densities of CH + and those of molecular, atomic and total hydrogen show large scatter, suggesting there is no relation between abundances of methylidyne cation and hydrogen in any form.