论文标题
在Ogle-IV领域,新的短期三角洲Scuti星星朝银河凸起
New Short-Period Delta Scuti Stars in OGLE-IV Fields toward the Galactic Bulge
论文作者
论文摘要
我们报告了位于Ogle-IV银河凸出场中的24个令人困惑的短期变量星的分类。恒星是低振幅(<0.05 mag)的多周期对象,其主要周期在22至54分钟之间,仅基于光度法就无法明确建立类型。低分辨率的光谱随访表明所有对象都是主要序列A/F型星。因此,所有变量都是delta sct型脉动器。我们已经将它们添加到了可变星的Ogle-IV集合中。
We report the classification of 24 puzzling short-period variable stars located in OGLE-IV Galactic bulge fields. The stars are low-amplitude (<0.05 mag) multi-periodic objects with dominant periods between 22 and 54 min whose type could not have been unambiguously established based on photometry only. A low-resolution spectroscopic follow-up has shown that all the objects are main sequence A/F-type stars. Thus, all the variables are delta Sct-type pulsators. We have added them to the OGLE-IV Collection of Variable Stars.