What Physical Process Provides the Energy for the Ejection of a Planetary

question 71

Multiple Choice

What physical process provides the energy for the ejection of a planetary nebula from a low-mass star?

• A) transfer of hydrogen-rich material onto the surface of a white dwarf from its companion in a binary star system
• B) helium shell flashes in the helium fusion shell
• C) core collapse and the ensuing shock wave
• D) collision with another star

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