6 papers
Reduction of bar fraction in paired galaxies in the SDSS
Linlin Li, Shuai Feng, Shiyin Shen +3
We investigate the bar fraction in galaxy pairs from the SDSS to assess how galaxy interactions affect bar structures. Compared to isolated galaxies, close pairs exhibit a signific…
The Velocity Map Asymmetry of Ionized Gas in MaNGA II. Correlation between Velocity Map Morphology, Star Formation, and Metallicity in Regular Disk Galaxies
Shuai Feng, Shiyin Shen, Yanmei Chen +5
The morphology of ionized gas velocity maps provides a direct probe of the internal gas kinematics of galaxies. Using integral field spectroscopy from SDSS-IV MaNGA, we analyze a s…
Discovery of a new IW And-type dwarf nova with both tilted disk and tidal instability
Yongkang Sun, Xin Li, Qige Ao +6
IW And-type dwarf novae are anomalous Z Cam stars featured with outbursts happening during standstill states, which are not expected in the standard disk instability model. The phy…
Identification of Carbon Stars from LAMOST DR7
Linlin Li, Kecheng Zhang, Wenyuan Cui +6
Carbon stars are excellent kinematic tracers of galaxies and play important roles in understanding the evolution of the Galaxy. Therefore, it is worthwhile to search for them in a…
The measurement of masses of OB-type stars from LAMOST DR5
Zhenyan Huo, Zhicun Liu, Wenyuan Cui +5
The measurements of masses and luminosities of massive stars play an important role in understanding the formation and evolution of their host galaxies. In this work, we present th…
Identification of Blue Horizontal-Branch Stars From LAMOST DR5
Jie Ju, Wenyuan Cui, Zhenyan Huo +6
We construct a new catalog of the blue horizontal-branch (BHB) stars from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) DR5 dataset, which contains 5355+81…