Astronomy, Stars

Question

A white dwarf with a mass of 0.4 solar masses is orbiting with another star in a binary system. That white dwarf could eventually experience a type Ia supernova explosion if the other star is
A.) a brown dwarf
B.) a K main sequence star
C.) a 0.9 solar mass white dwarf
D.) an A main sequence star
E.) It is impossible for this white dwarf to experience a supernova

Answer 1

From the Internet:

A type Ia supernova (read "type one-a") is a type of supernova that occurs in binary systems (two stars orbiting one another) in which one of the stars is a white dwarf. The other star can be anything from a giant star to an even smaller white dwarf.