6 papers
A Robust Geometric Distortion Solution for Main Survey Camera of CSST
Yibo Yan, You Wu, Jundan Nie +30
The advancement in sensitivity and field of view of next-generation wide-field survey telescopes requires astrometric measurements with high precision, even in the presence of sign…
Detection and classification of astronomical sources with Astro-RetinaNet in crowded stellar fields
Yibo Yan, Chao Liu, Jiadong Li +1
Upcoming next-generation sky surveys will detect large number of faint objects with magnitudes larger than 25. When objects are crowded within a limited a field of view, blending b…
Stellar Parameters of BOSS M dwarfs in SDSS-V DR19
Dan Qiu, Jennifer A. Johnson, Chao Liu +15
We utilized the Stellar LAbel Machine (SLAM), a data-driven model based on Support Vector Regression, to derive stellar parameters ([Fe/H], , and ) for SDSS-V…
The structural and kinematical properties of NGC 5634, a globular cluster associated with the Sagittarius dwarf galaxy?
Shouzhi Wang, Jundan Nie, Biwei Jiang +3
We investigate the origin of NGC 5634 through a comprehensive analysis of its morphology, kinematics and dynamics. Utilizing data from the DESI Legacy Survey, we refined its fundam…
Distance estimation of the high-velocity cloud Anti-Center Shell
Yu-Ting Wang, Chao Liu, Zhi-Yu Zhang
High-velocity clouds (HVCs) are interstellar gas clouds whose velocities are incompatible with Galactic rotation. Since the first discovery of HVCs in 1963, their origins have been…
LAMOST medium-resolution spectroscopic survey of Galactic Open Clusters (LAMOST-MRS-O): An overview of survey plan and preliminary results
Xi Zhang, Chengzhi Liu, Jing Zhong +7
As part of the LAMOST medium-resolution spectroscopic survey, the LAMOST-MRS-O is a non-time domain survey that aims to perform medium-resolution spectral observations for member s…