Two stars orbit each other as a close binary system.When the system forms,star A has 10 solar masses and star B has 3 solar masses.Which of the following is most likely to happen in the future?
A) Star A will transfer mass to star B.
B) Star B will transfer mass to star A.
C) The stars will merge.
D) Radiation from star B will disrupt star A.

Question

Quizplus · Accepted Answer

In a close binary system, the more massive star tends to evolve faster and become a red giant before the less massive star. As a red giant, the more massive star will expand and transfer mass onto the less massive star. Therefore, Star A with 10 solar masses is more likely to transfer mass to Star B with 3 solar masses.

Two Stars Orbit Each Other as a Close Binary System