175 citations · 1.1k across the 35 of their papers we have counts for
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A Catalog of RV Variable Star Candidates from LAMOST
Zhijia Tian, Xiaowei Liu, Haibo Yuan +14
RV variable stars are important in astrophysics. The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) spectroscopic survey has provided ~ 6.5 million stellar spec…
Magnetic Activity of F-, G-, and K-type Stars in the LAMOST-Kepler Field
Jinghua Zhang, Shaolan Bi, Yaguang Li +10
Monitoring chromospheric and photospheric indexes of magnetic activity can provide valuable information, especially the interaction between different parts of the atmosphere and th…
A New Luminous blue variable in the outskirt of the Andromeda Galaxy
Yang Huang, Huaiwei Zhang, Chun Wang +8
The hot massive luminous blue variables (LBVs) represent an important evolutionary phase of massive stars. Here, we report the discovery of a new LBV -- LAMOST J0037+4016 in the di…
Ages and Masses of 0.64 million Red Giant Branch stars from the LAMOST Galactic Spectroscopic Survey
Yaqian Wu, Maosheng Xiang, Gang Zhao +13
We present a catalog of stellar age and mass estimates for a sample of 640\,986 red giant branch (RGB) stars of the Galactic disk from the LAMOST Galactic Spectroscopic Survey (DR4…
LEMONY--a Library of Empirical Medium-resolution spectra by Observations with the NAOC Xinglong 2.16\,m and YNAO Gaomeigu 2.4\,m telescopes
Chun Wang, Xiaowei Liu, Yang Huang +15
This study expands the coverage and improves the homogeneity of the distribution of MILES template stars in the parameter space, as well as extends the wavelength coverage of the t…
A new catalogue of radial velocity standard stars from the APOGEE data
Yang Huang, Xiaowei Liu, Bingqiu Chen +5
We present a new catalogue of 18 080 radial velocity standard stars selected from the APOGEE data. These RV standard stars are observed at least three times and have a median stabi…
Binary Star Fractions from the LAMOST DR4
Zhijia Tian, Xiaowei Liu, Haibo Yuan +17
Stellar systems composed of single, double, triple or high-order systems are rightfully regarded as the fundamental building blocks of the Milky Way. Binary stars play an important…
Asteroseismology of KIC 7107778: a binary comprising almost identical subgiants
Yaguang Li, Timothy R. Bedding, Tanda Li +5
We analyze an asteroseismic binary system: KIC 7107778, a non-eclipsing, unresolved target, with solar-like oscillations in both components. We used \emph{Kepler} short cadence tim…
New Open Cluster Candidates Discovered in the XSTPS-GAC Survey
Jincheng Guo, Huawei Zhang, Huihua Zhang +11
The Xuyi Schmidt Telescope Photometric Survey of the Galactic Anti-center (XSTPS-GAC) is a photometric sky survey that covers nearly 6 000 deg^2 towards Galactic anti-center in g r…
Mass and Age of Red Giant Branch Stars Observed with LAMOST and \emph{Kepler}
Yaqian Wu, Maosheng Xiang, Shaolan Bi +13
Obtaining accurate and precise masses and ages for large numbers of giant stars is of great importance for unraveling the assemblage history of the Galaxy. In this paper, we estima…
Ages and masses of million Galactic disk main sequence turn-off and sub-giant stars from the LAMOST Galactic spectroscopic surveys
Maosheng Xiang, Xiaowei Liu, Jianrong Shi +10
We present estimates of stellar age and mass for 0.93 million Galactic disk main sequence turn-off and sub-giant stars from the LAMOST Galactic Spectroscopic Surveys. The ages and…
The effects of the overshooting of the convective core on main-sequence turnoffs of young- and intermediate-age star clusters
Wuming Yang, Zhijia Tian
Recent investigations have shown that the extended main-sequence turnoffs (eMSTOs) are a common feature of intermediate-age star clusters in the Magellanic Clouds. The eMSTOs are a…
Seismic diagnostics of solar-like oscillating stars
Yaguang Li, Minghao Du, Bohan Xie +5
High precision and long-lasting \emph{Kepler} data enabled us to estimate stellar properties with asteroseismology as an accurate tool. We performed asteroseismic analysis on six s…
Asteroseismic analysis of two alpha-enhanced stars KIC 7976303 and KIC 8694723
Z. S. Ge, S. L. Bi, T. D. Li +5
We intent to use stellar models with and without alpha-enhancement, as well as asteroseismic analysis, to study two alpha-enhanced stars, KIC 7976303 and KIC 8694723. For the alpha…
Stellar Parameters of Main Sequence Turn-off Star Candidates Observed with the LAMOST and Kepler
Yaqian Wu, Maosheng Xiang, Xianfei Zhang +10
Main sequence turn-off (MSTO) stars have advantages as indicators of Galactic evolution since their ages could be robustly estimated from atmospheric parameters. Hundreds of thousa…
The LAMOST spectroscopic survey of star clusters in M31. II. Metallicities, ages and masses
Chen Bingqiu, Liu Xiaowei, Xiang Maosheng +14
We select from Paper I a sample of 306 massive star clusters observed with the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) in the vicinity fields of M31 and…
Asteroseismic analysis of Kepler target KIC 2837475
Wuming Yang, Zhijia Tian, Shaolan Bi +3
The ratios and of small to large separations of KIC 2837475 primarily exhibit an increase behavior in the observed frequency range. The calculations indicate that…
Asteroseismic analysis of solar-mass subgiants KIC 6442183 and KIC 11137075 observed by Kepler
Zhijia Tian, Shaolan Bi, Timothy R. Bedding +1
Asteroseismology provides a powerful way to constrain stellar parameters. Solar-like oscillations have been observed on subgiant stars with the \emph{Kepler\/} mission. The continu…
Precise determination of fundamental parameters of six exoplanet host stars and their planets
K. Liu, S. L. Bi, T. D. Li +3
The aim of this paper is to determinate the fundamental parameters of six exoplanet host (EH) stars and their planets. While techniques for detecting exoplanets yield properties of…
Exploring the sources of p-mode frequency shifts in the CoRoT target HD 49933
Zhie Liu, Shaolan Bi, Wuming Yang +5
The oscillations of the solar-like star HD 49933 have been observed thoroughly by CoRot. Two dozens of frequency shifts, which are closely related with the change in magnetic activ…
Asteroseismic analysis of the CoRoT target HD49933
Zhie Liu, Wuming Yang, Shaolan Bi +9
The frequency ratios and of HD 49933 exhibit an increase at high frequencies. This behavior also exists in the ratios of other stars, which is considered to result from the low sig…
Evolution of rotational velocities of A-type stars
Wuming Yang, Shaolan Bi, Xiangcun Meng +1
It was found that the equatorial velocity of A-type stars undergoes an acceleration in the first third of the main sequence (MS) stage, but the velocity decreases as if the stars w…
Characteristics of solar-like oscillations of secondary red clump stars
Wuming Yang, Xiangcun Meng, Shaolan Bi +4
We calculated the populations of core-helium-burning (CHeB) stars and found that the secondary red clump (SRC) stars can form an SRC peak in the distributions of the frequency of m…
The Contributions of Interactive Binary Stars to Double Main Sequence Turn-Offs and Dual Red Clump of Intermediate-Age Star Clusters
Wuming Yang, Xiangcun Meng, Shaolan Bi +3
Double or extended main-sequence turn-offs (DMSTOs) and dual red clump (RC) were observed in intermediate-age clusters, such as in NGC 1846 and 419. the DMSTOs are interpreted as t…