What Is the Main Observational Difference Between a Type Ia

question 122

Multiple Choice

What is the main observational difference between a Type Ia and a Type II supernova?

• A) Hydrogen lines are prominent in the spectrum of a Type Ia supernova but absent in that of a Type II.
• B) The spectrum of a Type II supernova shows strong lines of both hydrogen and helium, whereas that of a Type Ia shows only hydrogen.
• C) The spectrum of a Type Ia supernova shows strong lines of both hydrogen and helium, whereas that of a Type II shows only hydrogen.
• D) Hydrogen lines are prominent in the spectrum of a Type II supernova but absent in that of a Type Ia.

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