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Title: Why is 21-cm radiation so important to the study of interstellar matter and the Galaxy? Post by: Tsync on Feb 10, 2016 Why is 21-cm radiation so important to the study of interstellar matter and the Galaxy?
A) It is emitted by most stars, enabling astronomers to map the entire Galaxy. B) It is emitted only in hot regions of star formation, so the pattern of the spiral arms of the Galaxy can be mapped. C) Emitted by hydrogen, it passes through interstellar dust and lets us to map the entire Galaxy. D) Emitted by carbon monoxide, it passes through interstellar gas and lets us to see places rich in organic molecules around the Galaxy. E) It helps locate the galactic core in Sagittarius. Title: Re: Why is 21-cm radiation so important to the study of interstellar matter and the Galaxy? Post by: Ratatouille on Feb 11, 2016 Content hidden
Title: Re: Why is 21-cm radiation so important to the study of interstellar matter and the Galaxy? Post by: Tsync on Mar 2, 2016 Wonderful, thanks for your time and effort
Title: Re: Why is 21-cm radiation so important to the study of interstellar matter and the Galaxy? Post by: Ratatouille on Mar 3, 2016 :)
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