2 papers
astro-ph.SR2026
The reason for the occurrence of W-type contact binaries
Jia Zhang, Sheng-Bang Qian, Li-Ying Zhu +1
For more than half a century, the puzzling W-type phenomenon in contact binaries has challenged astrophysicists. In these systems, the less massive component exhibits a higher surf…
astro-ph.SR2025
The bimodal distribution of donor stars in X-ray binaries
Jia Zhang, Guo-Bao Zhang, Li-Ying Zhu +3
The classification of X-ray binaries into high- and low-mass types has historically lacked a unified, data-driven quantitative criterion, and large-scale statistical studies of the…