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Author Question: What is the origin of short gamma ray bursts? A) the collision of stars in the dense nuclei of ... (Read 32 times)

dbose

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on: Jul 27, 2018
What is the origin of short gamma ray bursts?
 
  A) the collision of stars in the dense nuclei of distant galaxies
  B) new stars forming in the Milky Way
  C) very powerful supernovae occurring in distant galaxies
  D) supernovae in the Milky Way
  E) It is not known, but it may be the collision of a neutron star with a black hole.

Question 2

Sirius has a parallax of 0.38, while Alpha Centauri's is 0.77. Alpha Centauri is about ________ as Sirius.
 
  Fill in the blank(s) with correct word


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lou

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

E

Answer to Question 2

twice as close, or half as far


dbose

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Reply #2 on: Jul 27, 2018
Thanks


lou

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Reply #3 on: Jul 27, 2018
Welcome :)


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