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Distribution of visual binary stars over masses and separation between components
Tutukov, A. V.; Kovaleva, D. A.
We investigate initial ditributions of visual binary stars over semimajor axes of orbits, initial masses of main components, and mass ratios of components using complete data on wide stellar pairs from WDS catalogue and results of astrometric space missions Gaia and Hipparcos.
Angular resolution of HD, HIP and DM catalogues
Malkov, O. Yu.
We estimate angular resolution of HD, HIP and BD/CD/CpD catalogues and discuss problems of cross-identification of components of visual binary stars with these catalogues.