论文标题
Tess Light曲线的灾难变量 - II:旧Novae和Novalike变量的超人
TESS light curves of cataclysmic variables -- II: Superhumps in old novae and novalike variables
论文作者
论文摘要
超烟是在灾难变量(CVS)的光曲线中观察到的丰富变量现象之一。它们以两种味道为正和负超烟,分别比这些相互作用的二元系统的轨道时期稍长于或更短的时期。积极的超级烟是Su〜uma类型的SuperOutBursting短期矮人的无处不在,但在较长时期的系统中较不常见,其增生磁盘处于永久性明亮状态,例如Novalike变量和大多数旧Novae。负超人似乎不偏爱特定类型的简历。在这里,我利用苔丝为大量恒星提供的长长的高节奏光曲线,选择了所有旧的Novae和Novalike变量,这些变量具有过去报道的超级人口,可用于苔丝光曲线,并且尚未在先前的出版物中进行分析,以研究其超人行为。结合从文献中获取的信息,结果可以汇编到迄今为止这些恒星中最完整的超级人口普查。作为推论,列出并用于更新轨道曲线,用于更新轨道曲线并讨论周期的变化。
Superhumps are among the abundant variable phenomena observed in the light curves of cataclysmic variables (CVs). They come in two flavours as positive and negative superhumps, distinguished by periods slightly longer or shorter, respectively, than the orbital periods of these interacting binary systems. Positive superhumps are ubiquitous in superoutbursting short period dwarf novae of the SU~UMa type but are less common in longer period systems with accretion disks in a permanent bright state such as novalike variables and most old novae. Negative superhumps do not seem not to have a preference for a particular type of CV. Here, I take advantage of the long high cadence light curves provided by TESS for huge number of stars, selecting all old novae and novalike variables with past reported superhumps for which TESS light curves are available and have not yet been analysed in previous publications in order to study their superhump behaviour. In combination with information taken from the literature the results enable to compile the most complete census of superhumps in these stars so far. As a corollary, for the eclipsing systems in the present sample of objects eclipse epochs derived from the TESS light curves and in some cases from archival light curves are listed and used to update orbital ephemeris and to discuss period changes.