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首页> 外文期刊>The Astrophysical Journal. Supplement Series >Cluster Difference Imaging Photometric Survey. I. Light Curves of Stars in Open Clusters from TESS Sectors 6 and 7
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Cluster Difference Imaging Photometric Survey. I. Light Curves of Stars in Open Clusters from TESS Sectors 6 and 7

机译：集群差异成像光度测量。 I.来自戏弄扇区6和7的开放集群中的明星的光曲线

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摘要

The Transiting Exoplanet Survey Satellite (TESS) is providing precise time-series photometry for most star clusters in the solar neighborhood. Using the TESS images, we have begun a Cluster Difference Imaging Photometric Survey, in which we are focusing both on stars that are candidate cluster members and on stars that show indications of youth. Our aims are to discover giant transiting planets with known ages, and to provide light curves suitable for studies in stellar astrophysics. For this work, we made 159,343 & xfffd; light curves of candidate young stars, across 596 & xfffd; distinct clusters. Each light curve represents between 20 and 25 days of observations of a star brighter than G(Rp)& xfffd;=& xfffd;16, with 30-minute sampling. We describe the image-subtraction and time-series analysis techniques we used to create the light curves, which have noise properties that agree with theoretical expectations. We also comment on the possible utility of the light-curve sample for studies of stellar rotation evolution and binary eccentricity damping. The light curves, which cover about one-sixth of the galactic plane, are available at stsci.edu/hlsp/cdips..
机译：过渡的Exoplanet调查卫星（TESS）在太阳能邻域中的大多数恒星群中提供精确的时间序列测光。使用TESS图像，我们已经开始了集群差异成像光度调查，其中我们正在关注候选集群成员和展示青年迹象的星星。我们的目标是发现具有已知年龄的巨型过渡行星，并提供适合于恒星天体物理学研究的光曲线。对于这项工作，我们制作了159,343＆xfffd;候选人的光线曲线，横跨596＆xfffd;独特的簇。每个光曲线代表恒星比G（RP）和XFFFD的恒星的20至25天的观察结果。=＆XFFFD; 16，采样30分钟。我们描述了我们用于创建光线曲线的图像减法和时间序列分析技术，其具有与理论期望一致的噪声属性。我们还评论了光曲线样本的可能效用，用于研究恒星旋转演化和二元偏心阻尼的研究。在Stsci.edu/hlsp/cdips上提供大约六个半乳液平面的光曲线。

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