5 papers
A Two-level Radial-velocity Zero-point Calibration for LAMOST MRS with Gaia and APOGEE and a Value-added RV Catalogue
Jinming Zhang, Haibo Yuan
The LAMOST Medium-Resolution Survey (MRS) provides a large stellar spectroscopic data set for Galactic kinematics and time-domain radial-velocity (RV) studies. However, the multi-s…
A Face-on View of Interstellar Dust in the Galactic Plane
Lin Zhang, Bingqiu Chen, Fei Qin +3
Interstellar dust is a fundamental component of the Milky Way, influencing star formation, galactic evolution, and observations across the electromagnetic spectrum. Using red clump…
A General Framework for Radial Velocity Calibration in Low-Resolution Spectroscopic Surveys: Correcting Wavelength-Dependent and Global Systematics with Application to LAMOST DR9
Jinming Zhang, Haibo Yuan, Zhijia Tian
Radial velocity (RV) is crucial for stellar kinematics and Galactic archaeology. The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) has obtained over ten millio…
Photometric Metallicities for 367,324 stars of Omega Centauri
Xue Lu, Haibo Yuan, Bowen Huang +2
Omega Centauri is the most massive and chemically complex multi-population globular cluster with a wide metallicity range that has been extensively studied photometrically and spec…
A large, long-lived, slowly-expanding superbubble across the Perseus Arm
Bingqiu Chen, Guangxing Li, Haibo Yuan +5
Stellar feedback is a crucial mechanism in galactic evolution, as demonstrated by the widespread bubbles observed with JWST. In this study, we combine data from Gaia and LAMOST to…