南方疏散星团NGC 6200中的新造父β变星：ALS 3728
New β Cephei variable in the Southern open cluster NGC 6200: ALS 3728
摘要：
我们报道了位于南疏散星团$β$的一个新的造父变星：\astrobj{ALS 3728}的证据。2011年，南非天文台对NGC1，6200恒星进行了分光光度观测。发现\astrobj{ALS 3728}具有约4.95 d的频率，具有最高振幅的$^{-1}$。这颗恒星还显示出一个显着的静止阶段，就在它的光极大值，这是一个典型的特征，发生在这些类型的恒星。此外，模式识别应用于从傅立叶分析计算的主频率。
英文摘要：
We report the evidence of a new $β$ Cephei type variable located in the Southern open cluster \astrobj{NGC 6200}: \astrobj{ALS 3728}. Spectroscopic and photometric observations of NGC\,6200 stars were carried out at the South African Astronomical Observatory (SAAO) in 2011. It was found that \astrobj{ALS 3728} has a frequency of about 4.95 d$^{-1}$ with highest amplitude. The star also shows a remarkable stillstand phase just before its light maxima which is a typical characteristic occurring among these type of stars. Furthermore, a mode identification is applied for the dominant frequency that is calculated from the Fourier analysis.
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