In a Cepheid Variable, What Happens to Make Its Temperature

question 187

Multiple Choice

In a Cepheid variable, what happens to make its temperature rise?

• A) A layer of ionized helium absorbs photons.
• B) The fusion reaction switches from hydrogen fusion to helium fusion.
• C) The hydrogen fusion in the shell increases as it receives a periodic burst of convection current-carried fuel.
• D) The electron degeneracy in the core refuses to allow the core to expand in response to energy generation.

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