论文标题
苔丝完整框架图像I：第一个1年数据的结果和发现失控的北斗星的结果
Dippers from the TESS Full-Frame Images I: The Results of the first 1 year data and Discovery of A Runaway dipper
论文作者
论文摘要
我们提出了北斗星的全面目录 - 年轻的恒星对象，这些物体表现出偶发性变暗的 - - 源自过渡系外行星调查卫星（$ tess $）全帧图像的一年价值。在调查中，我们发现了35个使用卷积神经网络的北极星，其中大多数是新发现的。尽管这些北极光在调查的$ tess $调查的前半孔中被广泛分布，但我们确定了与最近的关联天蝎座的大多数成员资格，即核心，velorum ob2和附近的猎户座分子云配合物。但是，几个北斗星可能位于该领域。我们还发现了三个年龄超过一千万年的旧北铲，这被认为是磁盘耗散时间。颜色图表明这些旧的北枝可能具有极端的碎屑盘。特别是，我们发现一个失控的北斗七星的三维速度为$ 72 \ mathrm {km \ s}^{ - 1} $。该领域的北斗星可能比以前认为的更常见。
We present a comprehensive catalog of the dippers---young stellar objects that exhibit episodic dimming---derived from the one year's worth of data of Transiting Exoplanet Survey Satellite ($ TESS$) full-frame images. In the survey, we found 35 dippers using the convolutional neural network, most of them newly discovered. Although these dippers are widely distributed over the first half-hemisphere that $TESS$ surveyed, we identified the majority's membership with the nearest association Scorpius--Centaurus, Velorum OB2, and nearby Orion molecular cloud complex. However, several dippers are likely to be located in the field. We also found three old dippers whose age exceeds ten million year, which is considered as the disk dissipation time. The color-color diagram indicates that these old dippers are likely to have an extreme debris disk. In particular, we found a runaway old dipper having a large three-dimensional velocity of $72 \mathrm{km\ s}^{-1}$. The dippers in the field, which were probably escaping from their birth molecular clouds or were born outside the current area of star forming regions, are more common than previously considered.
