2 papers
astro-ph.IM2026
On-sky Fibre-Target-Alignment of the 4MOST instrument: calibration and performance
Roland Winkler, Weijia Sun, Daniel Sablowski +9
The 4-metre Multi-Object Spectroscopic Telescope (4MOST) is a new wide-field, fibre-fed spectroscopic survey facility for the VISTA telescope at ESOs Paranal Observatory. The instr…
astro-ph.SR2025
A hybrid SLAM-Payne framework for atmospheric parameter and abundance determination of early-type Stars from LAMOST DR9 low-resolution Spectra
Weijia Sun
Early-type stars are key drivers of Galactic chemical evolution, enriching the interstellar medium with alpha elements through powerful stellar winds and core-collapse supernovae,…