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The Blue Straggler RS CVn Star S1082 in M67: A Detailed Light Curve and the Possibility of a Triple
Eric L. Sandquist, David W. Latham, Matthew D. Shetrone +1
We present a picture of the very unusual blue straggler S1082 in the old open cluster M67 whose light is the sum of a close binary (P = 1.0677978 d) and another cluster member. We…
Sub-Subgiants in the Old Open Cluster M67?
R. D. Mathieu, M. van den Berg, G. Torres +3
We report the discovery of two spectroscopic binaries in the field of the old open cluster M67 -- S1063 and S1113 -- whose positions in the color-magnitude diagram place them appro…
An interferometric-spectroscopic orbit for the binary HD 195987: Testing models of stellar evolution for metal-poor stars
Guillermo Torres, Andrew F. Boden, David W. Latham +2
We report spectroscopic and interferometric observations of the moderately metal-poor double-lined binary system HD 195987, with an orbital period of 57.3 days. By combining our ra…