Ast 102 Chap 19.pdf - Chapter 19 Our galaxy !1 What is the...

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Chapter19 Our galaxy1What is the diameter of the disk of the Milky Way?
What is the thickness of the disk of the Milky Way?
What kinds of objects lie in the halo of our galaxy?
What kinds of objects lie in the disk of our galaxy?
Which of the following comprise the oldest members of the Milky Way?
If you were to take a voyage across the Milky way, what kind of material would you spend mostof your time in?
What makes up theinterstellar medium?
How does the interstellar medium obscure our view of most of the galaxy?
How can we see through the interstellar medium?
Harlow Shapley concluded that the Sun was not in the center of the Milky Way Galaxy bymapping the distribution of globular clusters in the galaxy.
Approximately how far is the Sun from the center of the galaxy?
Chapter19 Our galaxy2Open clusters and young stars are generally found only in the disk of the galaxy and not in thehalo.
What do astronomers consider heavy elements?
How are interstellar bubbles made?
What is a superbubble?
What is ashock front?
What are cosmic rays?
What produces the 21-cm line that we use to map out the Milky Way Galaxy?

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Term
Spring
Professor
EmilyRice

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