5 papers
Long Photometric Cycles in Double Periodic Variables from Nodal Precession of a Tilted Accretion Disk
Cheng-Liang Jiao, Er-gang Zhao, Liying Zhu +1
We investigate whether the long photometric cycles observed in double-periodic variables (DPVs) can arise from nodal precession of a tilted accretion disk driven by the tidal torqu…
The new compact triple system: discovery of bright third star around contact binary using LAMOST-MRS spectra and photometry
Mikhail Kovalev, Azizbek Matekov, Sufen Guo +2
We present a study of the third star orbiting around known contact eclipsing binary J04+25 using spectra from the LAMOST medium-resolution survey (MRS) and publicly available photo…
KM UMa: An active short-period detached eclipsing binary in a hierarchical quadruple system
Fangbin Meng, Liying Zhu, Nianping Liu +4
The first detailed photometric and spectroscopic analysis of the G-type eclipsing binary KM UMa is presented, which indicates that the system is a short-period detached eclipsing b…
Deep and low mass-ratio contact binaries and their third bodies
Liying Zhu, Shengbang Qian, Wenping Liao +6
Deep and low mass-ratio contact binaries (DLMCBs) are believed to be in the final stage of their contact phase, potentially leading to the formation of fast-rotating single stars s…
TV Mon -- post mass transfer Algol type binary with Scuti pulsations in primary component
Mikhail Kovalev, Zhenwei Li, Jianping Xiong +4
We present a study of the detached eclipsing binary TV~Mon using spectra from the LAMOST medium-resolution survey and ASAS-SN, CoRoT photometry. We apply multiple-epochs spectral f…