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Explorations an Introduction to Astronomy Thomas T. Arny | ||||||||
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Chapter
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Chapter 15, Figure 29
Figure
15.29
Birth of
the Milkyway as a gas cloud collapses. A first generation of stars (population
II) form. (B) Collapse continues with more population II stars forming and
some exploding as supernovas. Heavy elements created by the stars exploding
as supernovas are mixed into the gas. Gas not used in making stars settles
into a rotating disk. (C) Population I stars form in the disk.
