对六颗中介偏振星低流量态的观测研究
太阳与恒星天体物理
2022-04-13 v2 高能天体物理现象
摘要
我们展示了六颗表现出向低流量态转变的中介偏振星的光学测光数据。对于其中四个系统 DW Cnc、V515 And、V1223 Sgr 和 RX J2133.7+5107，我们能够在低态内外进行计时分析。我们发现，对于 DW Cnc 和 V515 And，光变曲线中的主导周期随流量下降而改变，表明其吸积性质在转入低态时发生变化。对于 V1223 Sgr，我们发现其在最低流量下变异性几乎完全被抑制，但未发现吸积几何结构改变的证据。对于 RX J2133.7+5107，其时间性质在低态下未改变，但我们确实观测到一段增强的吸积期，该时段与拍频上变异性的增加相吻合，我们不将其归因于系统吸积机制的变化。
引用
@article{arxiv.2202.08365,
title = {Investigating the low-flux states in six Intermediate Polars},
author = {Ava E. Covington and Aarran W. Shaw and Koji Mukai and Colin Littlefield and Craig O. Heinke and Richard M. Plotkin and Doug Barrett and James Boardman and David Boyd and Stephen M. Brincat and Rolf Carstens and Donald F. Collins and Lewis M. Cook and Walter R. Cooney and David Cejudo Fernández and Sjoerd Dufoer and Shawn Dvorak and Charles Galdies and William Goff and Franz-Josef Hambsch and Steve Johnston and Jim Jones and Kenneth Menzies and Libert A. G. Monard and Etienne Morelle and Peter Nelson and Yenal Öğmen and John W. Rock and Richard Sabo and Jim Seargeant and Geoffrey Stone and Joseph Ulowetz and Tonny Vanmunster},
journal= {arXiv preprint arXiv:2202.08365},
year = {2022}
}
备注
19 pages, 10 figures, accepted for publication in ApJ. The authors recommend downloading the PDF of this paper, as it takes a while to render online