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Author Question: When a low-mass star runs out of hydrogen in its core, it gets brighter. Why? What will be an ... (Read 30 times)

tnt_battle

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on: Jul 27, 2018
When a low-mass star runs out of hydrogen in its core, it gets brighter. Why?
 
  What will be an ideal response?

Question 2

What are some of the properties of objects in the solar system that a theory of its origin DOES NOT need to account for? Explain.
 
  What will be an ideal response?


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shewald78

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Reply #1 on: Jul 27, 2018
Answer to Question 1

Without radiation pressure to inflate it, the core contracts again and heats up, making the hydrogen burning shell expand as well.

Answer to Question 2

There are many answers to this: Mercury's spin-orbit coupling, Venus' runaway Greenhouse Effect, the Moon's synchronous rotation, the emergence of life on Earth and its absence on Mars, the Kirkwood gaps in the asteroid belt, and the rings and atmospheric appearance of the outer planets.


tnt_battle

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Reply #2 on: Jul 27, 2018
TY


shewald78

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Reply #3 on: Jul 27, 2018
You're welcome


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