Which of these does NOT depend on a close binary system to occur?
A)a nova
B)a Type I supernova
C)a Type II supernova
D)All of these need mass transfer to occur.
E)None of these depend on mass transfer.

Question

Quizplus · Accepted Answer

A Type II supernova occurs when a massive star collapses in on itself, and does not require a close binary system or mass transfer. Novae and Type I supernovae both involve mass transfer between two stars in a close binary system. Type II supernovae are not dependent on mass transfer from a binary companion. They result from the core collapse of a massive star at the end of its life. Novae and Type I supernovae, on the other hand, are both caused by mass transfer between a binary pair of stars.

Which of These Does NOT Depend on a Close Binary