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Studying the Physical Parameters of the Stellar Binary System Hip 42455 (HD 73900)
Abu-Dhaim, A.; Taani, A.; Tanineah, D. +3 more
We present the results of the combined spectrophotometric and dynamic analysis for the close visual binary star Hip 42455 (HD 73900, I 314). A model binary that consists of two main sequence stars with a clear magnitude difference, but completely different estimations of their spectral types, and different parallax measurements given by the four c…
Speckle Observations with PISCO in Calern (France): Orbit and Mass Determinations for 22 Visual Binaries
Bendjoya, P.; Rivet, J. -P.; Ling, J. F. +7 more
This paper presents orbits and masses for 22 visual double stars, partly derived using their last observations made with the speckle camera PISCO. For 13 of them we have determined their first-time orbits. Masses were calculated from Hipparcos and Gaia parallaxes when available, and from dynamical parallaxes otherwise. They are compared with masse…