论文标题
M矮人的旋转活动关系：从K2到Tess和Plato
The rotation-activity relation of M dwarfs: From K2 to TESS and PLATO
论文作者
论文摘要
对晚期恒星的旋转活性关系的研究对于增强我们对恒星发电机和角动量进化的理解至关重要。我们研究了与M矮人的旋转活性关系，在该M矮人中特别了解它。我们分析了所有明亮和附近的M矮人的光曲线形成了K2视野中的超级链接正确的运动目录。对于在漫长节奏模式下的活动C0-C19中观察到的430 M矮人的样本，我们确定了旋转期和大量活动诊断。我们对基于光度活性指标的旋转活性关系的研究证实了先前发表的旋转期在〜10d的活动水平的突然变化。我们的样本较大的三倍以上增加了这一发现的统计意义。
Studies of the rotation-activity relation of late-type stars are essential to enhance our understanding of stellar dynamos and angular momentum evolution. We study the rotation-activity relation with K2 for M dwarfs where it is especially poorly understood. We analyzed the light curves of all bright and nearby M dwarfs form the Superblink proper motion catalog that were in the K2 field of view. For a sample of 430 M dwarfs observed in campaigns C0-C19 in long cadence mode we determined the rotation period and a wealth of activity diagnostics. Our study of the rotation-activity relation based on photometric activity indicators confirmed the previously published abrupt change of the activity level at a rotation period of ~10d. Our more than three times larger sample increases the statistical significance of this finding.
