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Unformatted text preview: Why Do Stars Form? Thursday, March 04, 2010 1:44 PM 1. There a lots of ways that could have triggered the birth of the sun o Need cold and dense gas o Only see bright stars on spiral arms bc they produce stars-- those are the young, hot, luminous stars o Collisions between galaxies and gas clouds can both form stars o Supernovae can trigger star formation 2. How are stars born? o What 3 things can be between stars? Dust Gas Dark matter o Where do new stars from? Nebulae o How does the death of one star trigger the birth of many new ones? Supernova sends shockwaves through the clouds When it hits dust and gas clouds, material from supernova gets mixed in This is how we suspect our sun was formed o See chapter 18 3. More nuclear reactions o Proton-proton chain Not the only method to nuclear reactions Hard to reproduce conditions in a star on earth, but we have some ideas Small change in temperature makes a big change in how reactions occur (due to the fourth power)...
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This note was uploaded on 03/30/2012 for the course ASTR 1102 taught by Professor Staff during the Spring '08 term at LSU.
- Spring '08