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1. Why are radio telescopes and infrared telescopes often
more useful than optical telescopes in studying the birth of stars?
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2. In which regions of our galaxy is star formation taking place today?
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3. What is the relation between temperature, pressure, and gravity during the formation process of a star?
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4. Why do stars tend to form in clusters?
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5. What are the two most important sources of instability that could cause a molecular cloud to begin to collapse?
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6. Describe a typical T-Tauri variable star. In which stage of its life is such a star?
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7. Describe the Hyashi Track for a one solar mass star. Approximately how long does it take a one solar mass star to form?
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8. What is the longest, most stable period in a star's life? What is the fuel for this stage in a star's life?
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9. Why is there a lower limit to the mass a star can have? What is this limit?
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10. Why is there an upper limit to the amount of mass a star can have?
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