862 citations · 3.4k across the 71 of their papers we have counts for
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On the Metallicities of Kepler Stars
Subo Dong, Zheng Zheng, Zhaohuan Zhu +6
We use 12000 stars from Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) spectroscopic data to show that the metallicities of Kepler field stars as given in the K…
Substructure in bulk velocities of Milky Way disk stars
Jeffrey L. Carlin, James DeLaunay, Heidi Jo Newberg +11
We find that Galactic disk stars near the anticenter exhibit velocity asymmetries in both the Galactocentric radial and vertical components across the mid-plane as well as azimutha…
The properties of cross-correlation and spectra of the low-mass X-ray binary 4U 1608-52
Ya-Juan Lei, Shu Zhang, Jin-Lu Qu +4
With {\it RXTE} data, we analyzed the cross-correlation function between the soft and hard X-rays of the transient atoll source 4U 1608-52. We found anti-correlations in three outb…
DA white dwarfs observed in LAMOST pilot survey
Yue-Yang Zhang, Li-Cai Deng, Chao Liu +14
A total of objects from LAMOST pilot survey have been publicly released. In this work, we present a catalog of DA white dwarfs from the entire pilot survey. We outlin…
The Effects of Spectrograph Slit Modes on the Accuracy of Stellar Radial Velocity Measurement and Atmospheric Parameter Estimation
FengFei Wang, HaoTong Zhang, A-Li Luo +3
Spectrograph slit is conventionally used to enhance the spectral resolution and manage how much light can be allowed to enter spectrograph. A narrower slit provides a higher resolu…
Moon night sky brightness simulation for Xinglong station
Song Yao, Hao-Tong Zhang, Hai-Long Yuan +5
With a sky brightness monitor in Xinglong station of National Astronomical Observatories of China (NAOC), we collected data from 22 dark clear nights and 90 lunar nights. We first…
Evolution of cross-correlation and time lag of 4U 1735-44 along the branches
Ya-Juan Lei, Hao-Tong Zhang, Cheng-Min Zhang +7
We analyze the cross-correlation function between the soft and hard X-rays of atoll source 4U 1735-44 with RXTE data, and find the anti-correlated soft and hard time lags of about…