3 papers
astro-ph.SR2025
On the structure of open clusters: geometric vs geomantic
Lu Li, Zhengyi Shao
Understanding our place in the universe is an eternal quest. Through the analysis of the 3D structures of 66 nearby open clusters using Gaia DR3 data, we discovered an intriguing p…
astro-ph.SR2025
Mass-Dependent Radial Distribution of Single and Binary Stars in the Pleiades and their Dynamical Implications
Rongrong Liu, Zhengyi Shao, Lu Li
The Pleiades is a young open cluster that has not yet dynamically relaxed, making it an ideal target to observe various internal dynamical effects. By employing a well-defined samp…
astro-ph.SR2025
Photometric Determination of Unresolved Main-sequence Binaries in the Pleiades: Binary Fraction and Mass Ratio Distribution
Rongrong Liu, Zhengyi Shao, Lu Li
Accurate determination of binary fractions () and mass ratio () distributions is crucial for understanding the dynamical evolution of open clusters. We present an imp…