4 citations · 6 across the 12 of their papers we have counts for
14 papers
Stage-dependent superhump waveform evolution and non-stationary positive-superhump timing in the near-period-gap dwarf nova YZ Cancri
Zhibin Dai, Xuefei Chen, Zhanwen Han
We present a photometric and timing study of the near-period-gap SU~UMa-type dwarf nova YZ~Cancri, based on nearly continuous Transiting Exoplanet Survey Satellite (TESS) photometr…
First double red giant Algol system with active mass transfer
Mikhail Kovalev, Hailiang Chen, Sufen Guo +7
Double red giant stars are very important for studies of the stability of mass transfer, common-envelope evolution, and the formation of double white dwarfs with short orbital peri…
Surface brightness-color relations for red giant branch stars: Observational constraints on metallicity effects using the ARD method
Jianping Xiong, Xiaodian Chen, Jiao Li +5
Aims: We aim to quantify the metallicity dependence of the SBCR for red giant branch (RGB) stars and to test the robustness of the relation using asteroseismic radii, Gaia distance…
Empirical colour--effective temperature relations in the SDSS system from IRFM temperatures of GALAH and APOGEE stars
Zenghua Zhou, Luca Casagrande, Xiaobin Zhang +5
Reliable estimates of stellar effective temperature () are fundamental to stellar population studies and Galactic astrophysics. However, the majority of stars ob…
Recalibration of SDSS photometric zero-points based on the InfraRed Flux Method temperature scale
Zenghua Zhou, Luca Casagrande, Heran Xiong +4
Accurate photometric zero-points are essential for translating observed magnitudes into physical fluxes, from comparing with models to ensuring consistency across surveys. We deter…
Discovery and Characterization of White Dwarf-FGK Main-Sequence Binaries within the Optical Main-Sequence Locus
Mingkuan Yang, Hailong Yuan, Xiaozhen Yang +12
White dwarf main-sequence (WDMS) binaries provide important laboratories for studying binary evolution and the formation of low-mass white dwarfs. In this work, we identify 654 rel…
Identification of false positive double-lined spectroscopic binaries in LAMOST-MRS data due to moonlight contamination
Zhoulin Wang, Mikhail Kovalev, Jianping Xiong +2
We present a method for identifying false positive double-lined spectroscopic binary (SB2) candidates by analysing medium-resolution survey spectra from the Large Sky Area Multi-Ob…
A New Algol-type Binary with an Accretion disk
Tongyu He, Jiao Li, Xiaobin Zhang +10
We present a comprehensive photometric and spectroscopic analysis of the Algol-type binary \textit{Gaia} DR3 1892576067672499328. We identified the system as a spectroscopic binary…
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…
Orbital Parameters of 665 Double-lined Spectroscopic Binaries in the LAMOST Medium-Resolution Survey
Sufen Guo, Mikhail Kovalev, Jiao Li +9
The period, mass ratio, eccentricity, and other orbital parameters are fundamental for investigating binary star evolution. However, the number of binaries with known orbital param…
Surface brightness-color relations for red giant branch stars using asteroseismic radii and Gaia distances (the ARD method)
Jianping Xiong, Qiyuan Cheng, Xiaodian Chen +4
Aims. Asteroseismic radius and Gaia distance (ARD) method has been proposed to establish the SBCRs for late-type stars. Methods. We select Kepler RGB stars with high-precision aste…
Geometrical Distances of Extragalactic Binaries through Spectroastrometry
Yu-Yang Songsheng, Jian-Min Wang, Yuan Cao +4
The growing ``Hubble tension'' has prompted the need for precise measurements of cosmological distances. This paper demonstrates a purely geometric approach for determining the dis…
Identifying Hierarchically Triple Star Systems with Gaia DR3 and LAMOST
Tongyu He, Jiao Li, Jiangdan Li +8
Triple star systems are critical for understanding stellar dynamics and compact objects in astrophysics, yet confirmed hierarchical triples identified via spectroscopy remain limit…
LAMOST J171013+532646: a detached short-period non-eclipsing hot subdwarf + white dwarf binary
Mingkuan Yang, Hailong Yuan, Zhongrui Bai +9
We present an analysis of LAMOST J171013.211+532646.04 (hereafter J1710), a binary system comprising a hot subdwarf B star (sdB) and a white dwarf (WD) companion. Multi-epoch spect…