How do cepheid stars pulsate?
Hazel AsherRadially
Cepheids are variable stars, similar to pulsars and cataclysmic variables. Pulsations in cepheids are detected as variations in luminosity, which arise from radial oscillations.
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Levi AlexanderThe balance between radiation pressure and gravity causes changes in the internal structure and temperature of cepheid stars, which causes periodic expansions and contractions of their outer layers and variations in brightness over time.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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