论文标题
赫克里斯型灾难性变量星的光学研究
Optical Studies of 8 AM Herculis-Type Cataclysmic Variable Stars
论文作者
论文摘要
我们报告了8个灾难性变量星（CV）的详细随访观察显然是她的恒星，也称为Polars。对于我们首次确定轨道周期，或者对现有确定的改进。我们拥有光谱的七个显示了高振幅径向速度曲线和突出的HEII 4686发射线的特征是强磁性CVS，其周期为81至219分钟，也是她的恒星的典型特征。 GAIA-ALERTS索引的两个对象Gaia18aot和Gaia18aya新识别为CVS。另一个，RX J0636.3+6554，深深地黯然失色，而CSS080228：081210+040352显示出尖锐的倾角，显然是部分日食。 Gaia18aya的频谱在5500埃埃斯特罗姆附近具有一个回旋谐波，该谐波将表面场限制在约49兆瓦或更大的情况下。
We report detailed follow-up observations of 8 cataclysmic variable stars (CVs) that are apparently AM Her stars, also called polars. For all, we either determine orbital periods for the first time, or improve on existing determinations. The seven for which we have spectra show the high-amplitude radial velocity curves and prominent HeII 4686 emission lines characteristic of strongly magnetic CVs, and their periods, which range from 81 to 219 minutes, are also typical for AM Her stars. Two objects from the Gaia-alerts index, Gaia18aot and Gaia18aya, are newly identified as CVs. Another, RX J0636.3+6554, eclipses deeply, while CSS080228:081210+040352 shows a sharp dip that is apparently a partial eclipse. The spectrum of Gaia18aya has a cyclotron harmonic near 5500 Angstroms that constrains the surface field to about 49 Megagauss or greater.
