Question

a star like our un will eventually evolve into a giant red star and then a...

a star like our un will eventually evolve into a giant red star and then a white dwarf star. A typical white dwarf is about the size of the earth and its surface temperature is about 2.5 x10 ^ 4K. A typical red giant has a surface temperature of 3.0x10 ^ 3K and a radius 100,000 times larger than that of a white dwarf.
What is the average radiated power per unit area and the total power radiated by each of these types of stars?
How do they compare?

Homework Answers

Answer #1

The total Power Radiated by a white dwarf is

Total Power Per unit Area

The total Power Radiated by a red giant is

Total Power Per unit Area

Comparison

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