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Author Question: The image of our galaxy in radio emission from CO, mapping the distribution of molecular clouds, is ... (Read 61 times)

newbem

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  • Posts: 579
on: Jul 27, 2018
The image of our galaxy in radio emission from CO, mapping the distribution of molecular clouds, is closest to the image of our galaxy in
 
  A) 21-cm-line radio emission from atomic hydrogen.
  B) visible light, showing the edges of supernova bubbles.
  C) visible light, which is closest to how the night sky appears from Earth.
  D) X-rays from hot gas bubbles in the disk.
  E) infrared emission from interstellar dust grains.

Question 2

The Schwartzschild radius for a 12 solar mass star is
 
  A) 4 km.
  B) 15 km.
  C) 36 km.
  D) 100 km.
  E) 3000 km.


jgranad15

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

E

Answer to Question 2

C


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