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Author Question: What are some sources of the shock waves that initiate star formation? What will be an ideal ... (Read 58 times)

melina_rosy

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on: Jul 27, 2018
What are some sources of the shock waves that initiate star formation?
 
  What will be an ideal response?

Question 2

An intermediately wound barred spiral galaxy would, in Hubble's system, be:
 
  A) BS2.
  B) BSE.5.
  C) SBb.
  D) S2B.
  E) SIrr.


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Tonny

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

Emission nebulae produce shock waves, resulting from their hot ionized gases. Supernovae are an excellent source of shock waves. Both of these are caused by O-B stars. Collisions between galaxies can also initiate star formation on a grand scale in starburst galaxies.

Answer to Question 2

C


melina_rosy

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Reply 2 on: Jul 27, 2018
Wow, this really help

nguyenhoanhat

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Reply 3 on: Yesterday
Gracias!

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