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Mass Ratios of Long-Period Binary Stars Resolved in Precision Astrometry Catalogs of Two Epochs

Makarov, V. V.

Mass ratios of widely separated, long-period, resolved binary stars can be directly estimated from the available data in major space astrometry catalogs, such as the ESA's Hipparcos and Gaia mission results. The method is based on the universal principle of inertial motion of the system's center of mass in the absence of external forces, and is in…