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Eclipsing Binaries in the Open Cluster Ruprecht 147. II. Epic 219568666

Torres, Guillermo; Vanderburg, A.; Curtis, Jason L.; Ciardi, David; Kraus, A L; Rizzuto, Aaron C.; Ireland, Michael; Lund, Michael B.; Christiansen, Jessie L.; Beichman, Charles A


We report our spectroscopic monitoring of the detached, grazing, and slightly eccentric 12 day double-lined eclipsing binary EPIC 219568666 in the old nearby open cluster Ruprecht 147. This is the second eclipsing system to be analyzed in this cluster, following our earlier study of EPIC 219394517. Our analysis of the radial velocities combined with the light curve from the K2 mission yields absolute masses and radii for EPIC 219568666 of M1 = 1.121 ± 0.013 M☉ and R1 = 1.1779 ± 0.0070 R☉...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/ab54c5


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