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Stellar Pulsations: The Rhythmic Variations of Stars
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What is the primary mechanism responsible for stellar pulsations in red giant stars?
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A
Kappa mechanism
💡 Explanation:
The kappa mechanism is the primary mechanism responsible for stellar pulsations in red giant stars. It occurs when the opacity of the stellar material changes with temperature, causing the star to pulsate in response to changes in its internal energy balance.