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arXiv 1503.01614astro-ph.SR
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VSX星表中变星多次出现的可能候选者

Possible candidates for multiple occurrence of variable stars in the VSX catalogue

Jiri Liska, Marek Skarka, Reinhold Friedrich Auer, Zdenek Prudil, Anna Juranova

摘要:

本文介绍了VSX星表中可能多次出现的变星。我们识别这种双重性的主要标准是恒星之间的角距离(低于1弧分)和天体的近周期。在我们的方法中,我们还考虑了周期的两倍或一半值,以揭示具有相似光变曲线形状的恒星之间可能的错误分类。错误识别的概率由参数R表示,参数R给出了周期之间的相对差异。我们发现了1487对恒星的角距离低于1弧分,周期差R低于0.1%,这是重复的高概率候选人。从这个样本中,354对具有完全相同的周期(R = 0.0%),应被视为明确的重复。某些重复的主要贡献来自卡特琳娜巡天(73对有两个CSS首字母缩写的名称)和BEST项目(71对)。在天空中发现的副本的分布是不均匀的,但在银河平面上包含令人惊讶的凹陷。

英文摘要:

A paper about variable stars with possible multiple occurrence in the VSX catalogue is presented. Our main criteria for identification of such duplicities were the angular distance among stars (below 1 arcmin) and close periods of objects. In our approach, we also considered double or half values of periods to reveal possible misclassification among stars with similar light curve shapes. The probability of false identification is expressed by the parameter R giving the relative difference between periods. We found 1487 pairs of stars in angular distance lower than 1 arcmin with period difference R lower than 0.1 %, which are high-probable candidates on duplicates. From this sample, 354 pairs have exactly the same periods (R = 0.0 %) and should be considered as definite duplicates. The main contribution of certain duplicates comes from the Catalina Sky Survey (73 pairs have two names with CSS acronym) and from the BEST projects (71 pairs). Distribution of identified duplicates on the sky is not homogeneous but contains surprising depression in Galactic plane.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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