The Interferometric Binary ϵ Cnc in Praesepe: Precise Masses and Age
The Interferometric Binary ϵ Cnc in Praesepe: Precise Masses and Age
We observe the brightest member of the Praesepe cluster, Epsilon Cancri, to precisely measure the characteristics of the stars in this binary system, en route to a new measurement of the cluster's age. We present spectroscopic radial velocity measurements and interferometric observations of the sky-projected orbit to derive the masses, …