论文标题
tess的光曲线灾难变量i-在恒星中未知时期
TESS light curves of cataclysmic variables I -- Unknown periods in long-known stars
论文作者
论文摘要
灾难性变量（CVS）表现出许多可变现象，其中许多现象需要长，不间断的光曲线才能详细揭示自己。 TESS提供的长期数据集非常适合此目的。苔丝还可以观察到大量恒星，其中包括许多简历。在这里，提出了在Novalike和Old Novae子类型的CV样本中进行周期性变化的搜索。在15个目标中，有10个以前看不见的正或负超块状或已知超烟中的异常特征。苔丝光曲线表明，这些类型的CVS中超烟的发生不是例外，但很常见。对于8个系统，测量了轨道周期的新值或改进值。在电视col中，白矮人旋转时期的长期光学表现首先以其轨道边带的形式出现。过去在CP PUP中观察到的多个光度时期的奥秘解释了反映在光曲线中的异常情况。
Cataclysmic variables (CVs) exhibit a plethora of variable phenomena many of which require long, uninterrupted light curves to reveal themselves in detail. The month long datasets provided by TESS are well suited for this purpose. TESS has the additional advantage to have observed a huge number of stars, among them many CVs. Here, a search for periodic variations in a sample of CVs of the novalike and old novae subtypes is presented. In 10 of the 15 targets either previously unseen positive or negative superhumps or unusual features in known superhumps are identified. The TESS light curves demonstrate that the occurrence of superhumps in these types of CVs is not an exception but quite common. For 8 systems new or improved values for the orbital period are measured. In TV Col the long-sought optical manifestation of the white dwarf spin period is first seen in form of its orbital sideband. The mystery of multiple photometric periods observed in CP Pup in the past is explained by irregularly occurring anomalous states which are reflected in the light curve.
