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Lectures 9 & 10

Lectures 9 & 10 - 1 Ionization o As atoms get...

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1. Ionization o As atoms get hotter and move faster and faster, they lose electrons o Ex: if a bunch of people were to run around a room, the faster they go, the more likely they are to bump into each other and possibly lose something, like a watch, etc o Works the same way for molecules- they are more likely to get broken up 2. Stars: putting together the evidence o This is how we know how big stars are 3. Class vote question, part II o Is our sun typical? Yes, middle of the HR diagram No, brighter than most stars Its very special , I like it here o (all are correct) it IS typical and in the middle of the diagram, but brighter than most on the line 4. The Hertzsprung Russell Diagram o Main Sequence Red line 90% of stars are found here There is some fundamental underlying characteristic of these stars Not an evolutionary sequence, each star will only forever be on one spot on the line o Giant Branch Most luminous stars Giants and sub-giants (almost giants, wannabe giants)
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Lectures 9 & 10 - 1 Ionization o As atoms get...

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