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Author Question: What are the properties of the neutral hydrogen gas that exists in the interstellar medium? What ... (Read 27 times)

renzo156

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on: Jul 27, 2018
What are the properties of the neutral hydrogen gas that exists in the interstellar medium?
 
  What will be an ideal response?

Question 2

From the center of the Milky Way, 10- kpc-long magnetized jets of high-energy particles are emitted.
 
  Indicate whether the statement is true or false


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Laurenleakan

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

Neutral hydrogen dominates the composition of interstellar matter. The hydrogen exists as single atoms of hydrogen at a temperature of about 100 K. Typical densities are 1 atom/cubic centimeter or higher in clouds. Clouds of neutral hydrogen move around the Galaxy much like stars do. Neutral hydrogen emits a characteristic radio radiation at a wavelength of 21 cm. Because this wavelength is so long, it can travel unimpeded by dust clouds through the entire Galaxy. Observations of 21 cm radiation are useful in studying the velocities, densities, and distribution of neutral hydrogen and in mapping the entire Galaxy.

Answer to Question 2

TRUE


renzo156

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Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

dreamfighter72

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Reply 3 on: Yesterday
Excellent

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