27 citations · 95 across the 9 of their papers we have counts for
9 papers
Investigating the vertical distribution of the disk as a function of radial action: Results from simulations
Yunpeng Jia, Chengqun Yang, Yuqin Chen +2
Previous research has established a relationship between radial action and scale height in Galactic disks, unveiling a correlation between radial and vertical heating. This finding…
Investigating the vertical distribution of the disk as a function of radial action
Yunpeng Jia, Yuqin Chen, Cuihua Du +1
As heating processes can broaden the distributions of radial actions and the vertical distributions of the Galactic disks, we investigate the vertical distribution of the Galactic…
A Hint of Three-section Halo as Seen from the APOGEE DR14
Y. Q. Chen, G. Zhao, X. X. Xue +4
Based on the [Fe/H] versus [Mg/Fe] diagram and distances from APOGEE data release 14, we compare the spatial distributions, the l-Vlos diagram and the abundance gradients between h…
On the radial metallicity gradient and radial migration effect of the Galactic disk
Yunpeng Jia, Yuqin Chen, Gang Zhao +4
We study the radial metallicity gradient as a function of [Mg/Fe] and with the help of a guiding radius based on the Apache Point Observatory Galactic Evolution…
Absolute Magnitudes of Seismic Red Clumps in the Kepler Field and SAGA: the age dependency of the distance scale
Y. Q. Chen, L. Casagrande, G. Zhao +4
Red clump stars are fundamental distance indicators in astrophysics, although theoretical stellar models predict a dependence of absolute magnitudes with ages. This effect is parti…
Kinematics of the Galactic disk from LAMOST Dwarf sample
Yingjie Jing, Cuihua Du, Jiayin Gu +10
Based on the LAMOST survey and Sloan Digital Sky Survey (SDSS), we use low-resolution spectra of 130,043 F/G-type dwarf stars to study the kinematics and metallicity properties of…
Photometric Metallicity Calibration with SDSS and SCUSS and its Application to distant stars in the South Galactic Cap
Jiayin Gu, Cuihua Du, Yunpeng Jia +16
Based on SDSS g, r and SCUSS (South Galactic Cap of u-band Sky Survey) photometry, we develop a photometric calibration for estimating the stellar metallicity from and $g…
The Comparison of Stellar Atomspheric Parameters between LAMOST and APOGEE databases
Y. Q. Chen, G. Zhao, C. Liu +8
We have compared the stellar parameters, temperature, gravity and metallicity, between the LAMOST-DR2 and SDSS-DR12/APOGEE database for stars in common. It is found that the LAMOST…
Estimation of Absolute Magnitude-dependent Galactic Model Parameters In Intermediate Latitude With SDSS and SCUSS
Yunpeng Jia, Cuihua Du, Zhenyu Wu +15
Based on SDSS and South Galactic Cap of u-band Sky Survey (SCUSS) early data, we use star counts method to estimate the Galactic structure parameters in an intermediate latitude wi…