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A study on the correlations between diffuse interstellar bands

机译:星际漫射带之间的相关性研究

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摘要

Correlations between diffuse interstellar band equivalent widths (EWs) were sought, using a database of 45 prominent diffuse interstellar bands (DIBs) and seven C _2 bands in 278 sightlines collected from the literature. We found that 11 pairs of DIBs (λ 5544/5797?, λ 5544/6196?, λ 5544/6614?, λ 5809/6196?, λ 5809/6203?, λ5809/6270 ?, λ5809/6614 ?, λ6196/6614 ?, λ6196/6699 ?, λ6203/6284 ?, and λ6270/6699 ?) show a strong correlation with high coefficient (R ≥ 0.95), 416 pairs show a good correlation (0.7 ≤R<0.95) and 358 pairs show a poor correlation (R < 0.7). According to the values of the correlation coefficients and the spectroscopic features, we divided some of the 45 prominent DIBs into two isolated families.
机译:使用从文献中收集的278个视线中的45个突出的星际漫射带(DIB)和7个C _2波段的数据库,寻求星际漫射带等效宽度(EWs)之间的相关性。我们发现11对DIB(λ5544/5797?,λ5544/6196?,λ5544/6614?,λ5809/6196?,λ5809/6203?,λ5809/ 6270?,λ5809/ 6614?,λ6196/ 6614?,?6196/6699?,?6203/6284?和?6270/6699?)与高系数(R≥0.95)表现出很强的相关性,416对显示出良好的相关性(0.7≤R<0.95),358对显示出良好的相关性相关性差(R <0.7)。根据相关系数的值和光谱特征,我们将45个突出的DIB中的一些分为两个独立的族。

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