颜色-星等图中的变异形态。寻找长期变率
Variability morphologies in the color-magnitude diagram. Searching for secular variability
摘要：
这项工作的一部分，努力检测长期变量对象在大规模的调查，通过分析他们的路径颜色星等图。为此，我们首先给出了几种类型变星的V/V-I图的光变形态。它们包括来自大麦云云的周期和非周期变星，如经典造父变星、长周期变星或北冕座Be和R星，以及银河系中已探测到的两颗长期变星FG Sge和V4334 Sgr。不同的变化形态的研究允许识别的区域，这些长期的变星可以检测到的颜色星等图。我们还估计了在大麦云星云中可能存在的这种长期变星的数量。
英文摘要：
This work is part of an effort to detect secular variable objects in large scale surveys by analysing their path in color-magnitude diagrams. To this aim, we first present the variability morphologies in the V/V-I diagram of several types of variable stars. They comprise both periodic and non periodic variable stars from the Large Magellanic Cloud, such as classical Cepheids, long period variables or Be and R Coronae Borealis stars, as well as two of the detected secular variable stars in the Galaxy, FG Sge and V4334 Sgr. The study of the different variability morphologies allows the identification of regions in the color-magnitude diagram where those secular variable stars could be detected. We also estimate the number of such secular variable stars expected in the Large Magellanic Cloud.
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