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- W2007713633 abstract "Abstract Physical dimensions and evolutionary status of the A-type twin binary GSC 4019 3345 are presented. Located at a distance of ~1.1 kpc from the Sun, the system was found to have two components with identical masses ( M 1,2 = 1.92 M ⊙ ), radii ( R 1,2 = 1.76 R ⊙ ), and luminosities (log L 1,2 = 1.1 L ⊙ ) revolving in a circular orbit. Modeling the components with theoretical evolutionary tracks and isochrones implies a young age ( t = 280 Myr) for the system, which is bigger than the synchronization time scale but smaller than the circularization time scale. Nevertheless, synthetic spectrum models revealed components’ rotation velocity of V rot12 = 70 km s −1 , that is about three times higher than their synchronization velocity. No evidence is found for an age difference between the components." @default.
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- W2007713633 date "2013-01-01" @default.
- W2007713633 modified "2023-10-18" @default.
- W2007713633 title "GSC 4019 3345: An A-Type Twin Binary" @default.
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- W2007713633 doi "https://doi.org/10.1017/pas.2013.001" @default.
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