Unresolved Binaries in the Intermediate Mass Range in the Pleiades Star Cluster
A. Malofeeva,
A. Seleznev,
G. Carraro
Abstract:The identification of binary stars of different mass ratios in resolved stellar populations is a challenging task. We show how the photometric diagram constructed with the pseudo-colors (H-W2)-W1 vs W2-(BP-K) can be employed to estimate the binary and multiple star ratios and the distribution of their component mass ratio q effectively. As an application, we investigate the Pleiades star cluster in the range of primary component mass between 0.5 and 1.8 M ⊙ . The binary star ratio is found to be between 0.54±0… Show more
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