Swift深银道面巡天将Swift J170800$-$402551.8分类为中介偏振激变变星候选体
高能天体物理现象
2023-08-29 v3 星系天体物理
太阳与恒星天体物理
摘要
在此，我们呈现作为\textit{Swift}深银道面巡天（DGPS）一部分、旨在分类\textit{Swift} J170800402551.8的多波段观测活动结果。我们利用\textit{Swift}、\textit{NICER}、\textit{XMM-Newton}、\textit{NuSTAR}及南非大望远镜（SALT）的机遇目标（ToO）观测，以及来自\textit{Gaia}、VPHAS和VVV的多波段存档观测。该源在我们的\textit{XMM-Newton}观测中显示784 s的周期。X射线能谱（\textit{XMM-Newton}与\textit{NuSTAR}）可由温度\,\, keV的热韧致辐射描述。折叠相位的X射线光变曲线显示双峰、能量依赖的脉冲轮廓。我们使用\textit{Chandra}精确源定位，从而识别并研究多波段对应体。SALT光谱从光学对应体识别出Balmer H线及潜在的HeI线。对应体的暗弱（\,\, AB mag）支持低质量供体星。基于这些判据，我们将\textit{Swift} J170800402551.8分类为中介偏振激变变星候选体，其中白矮星自转周期为784 s。
引用
@article{arxiv.2307.13959,
title = {Swift Deep Galactic Plane Survey Classification of Swift J170800$-$402551.8 as a Candidate Intermediate Polar Cataclysmic Variable},
author = {B. O'Connor and E. Gogus and J. Hare and K. Mukai and D. Huppenkothen and J. Brink and D. A. H. Buckley and A. Levan and M. G. Baring and R. Stewart and C. Kouveliotou and P. Woudt and E. Bellm and S. B. Cenko and P. A. Evans and J. Granot and C. Hailey and F. Harrison and D. Hartmann and A. J. van der Horst and L. Kaper and J. A. Kennea and S. B. Potter and P. O. Slane and D. Stern and R. A. M. J. Wijers and G. Younes},
journal= {arXiv preprint arXiv:2307.13959},
year = {2023}
}
备注
Accepted in MNRAS