论文标题
发现新的苔丝脉动热细分
Discovery of new TESS pulsating hot subdwarfs
论文作者
论文摘要
这项工作致力于搜索苔丝光度数据中的新脉动热细分，这在先前的搜索中可能会遗漏。通过将热分子的目录与苔丝目标的目录匹配并使用Gaia parallaxes中的亮度，创建了苔丝观察到的1389个候选热分子列表。检查了这些恒星的周期图，并根据可变性类型对恒星进行分类。提出了所有已知脉动热细分的更新目录。已经鉴定出许多可能的脉动二进制物，这可能被证明可用于验证小型震中质量。从恒星参数估计P-和G模式脉动器的平均质量。提出了63个以前未知的脉动热细分列表，介绍了苔丝观察到的。以前有一半以上的恒星在G模式区域也发现了纯P模式脉动器也具有频率。结果，混合P-和G模式脉动器在整个不稳定条上发生。
This work is dedicated to a search for new pulsating hot subdwarfs in TESS photometric data which could have been missed in previous searches. By matching catalogues of hot subdwarfs with TESS targets and using luminosities from Gaia parallaxes, a list of 1389 candidate hot subdwarfs observed by TESS was created. The periodograms of these stars were inspected, and the stars were classified according to variability type. An updated catalogue of all known pulsating hot subdwarfs is presented. A number of probable pulsating binaries have been identified, which might prove useful for verifying the asteroseismic masses. The mean masses of p- and g-mode pulsators are estimated from the stellar parameters. A list of 63 previously unknown pulsating hot subdwarfs observed by TESS is presented. More than half of the stars previously identified as pure p-mode pulsators are found to have frequencies in the g-mode region as well. As a result, hybrid p- and g-mode pulsators occur over the whole instability strip.
