Observationally, How Can We Tell the Difference Between a White-

question 88

Multiple Choice

Observationally, how can we tell the difference between a white- dwarf supernova and a massive- star supernova?

• A)The spectrum of a massive- star supernova shows prominent hydrogen lines, while the spectrum of a white- dwarf supernova does not.
• B)A massive- star supernova happens only once, while a white- dwarf supernova can repeat periodically.
• C)A massive- star supernova is brighter than a white- dwarf supernova.
• D)The light of a white- dwarf supernova fades steadily, while the light of a massive- star supernova continues to brighten for many weeks.
• E)We cannot yet tell the difference between a massive- star supernova and a white- dwarf supernova.

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