A Nova Is an Explosion Involving a White Dwarf

question 131

Multiple Choice

A nova is an explosion involving a white dwarf. Can a white dwarf become a nova more than once? Why or why not?

• A) No. The white dwarf's magnetic field is eliminated in the explosion.
• B) Yes. A white dwarf can become a nova more than once if its temperature is high enough for recurrent helium flashes in the core.
• C) Yes. A white dwarf can become a nova more than once if it continues to receive matter from a companion star.
• D) No. The white dwarf is destroyed in the explosion.

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