17.48: In the binary star system shown, the two stars f
m+(h nu: uhe0yollow circular orbits about the system’s center of mass. The stars are separated by a distance D that is large compared to their size and are subject only to their mutual gravitational attraction. The orbital period of the star of mass M is T. Which one of the following choices represents the
0u yuemhn :+(h total mass of the binary star system?