Use t = 1 M2.5 to compute the life expectancy of a 0.6-solar-mass star. (A solar lifetime is approximately 10 billion years.) yr Why might this be an underestimate if the star is fully mixed by convection? a) If the star is fully mixed its mass will be much larger than 0.6 solar masses. b) If the star is fully mixed its mass will be much smaller than 0.6 solar masses. c) If the star is fully mixed it will
Use t = 1 M2.5 to compute the life expectancy of a 0.6-solar-mass star. (A solar lifetime is approximately 10 billion years.) yr Why might this be an underestimate if the star is fully mixed by convection? a) If the star is fully mixed its mass will be much larger than 0.6 solar masses. b) If the star is fully mixed its mass will be much smaller than 0.6 solar masses. c) If the star is fully mixed it will
Stars and Galaxies
9th Edition
ISBN:9781305120785
Author:Michael A. Seeds, Dana Backman
Publisher:Michael A. Seeds, Dana Backman
Chapter12: Stellar Evolution
Section: Chapter Questions
Problem 4DQ
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Question
Use
t =
1 |
M2.5 |
to compute the life expectancy of a 0.6-solar-mass star. (A solar lifetime is approximately 10 billion years.)
yr
Why might this be an underestimate if the star is fully mixed by
a) If the star is fully mixed its mass will be much larger than 0.6 solar masses.
b) If the star is fully mixed its mass will be much smaller than 0.6 solar masses.
c) If the star is fully mixed it will be able to use a larger portion of its hydrogen in fusion than the Sun.
d) If the star is fully mixed it will be able to use a smaller portion of its hydrogen in fusion than the Sun.
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