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Author Question: CO observations of the galaxy reveal a. the location of dense neutral hydrogen clouds. b. the ... (Read 123 times)

tnt_battle

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on: Jul 27, 2018
CO observations of the galaxy reveal
 
  a. the location of dense neutral hydrogen clouds.
  b. the location of population II stars.
  c. the location of population I stars.
  d. the location of the galactic corona.
  e. the location of giant molecular clouds.

Question 2

If a star's spectrum does not contain spectral lines characteristic of a certain element, can we conclude that the star does not contain that element? Why or why not?
 
  What will be an ideal response?


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guyanai

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

e

Answer to Question 2

We cannot conclude this, because it might be that the star is too hot or too cool for the electrons in a particular element to absorb photons.


tnt_battle

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Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


guyanai

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Reply #3 on: Jul 27, 2018
Great! Please up vote :D


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