What causes a type Ia supernova? How is this different than a type II supernova? Custom Paper

1. What causes a type Ia supernova? How is this different than a type II supernova?
2.What are at least two pieces of evidence that black holes exist? Explain why these pieces of evidence lead to the conclusion that there is a black hole.
3. Explain how a protostar forms
4. Do a web search for the Hubble Deep Field — an image that contains galaxies that formed near the beginning of the universe. How can astronomers determine the distance to these distant galaxies that formed in the early universe?
5. How does the lifetime of a very small star with much less mass than the Sun compare with the lifetime of the Sun?
6. What is the significance of the Chandrasekhar limit?
7. Describe what causes a pulsar to pulse.
8. What is the final stage for stars whose final masses are greater than three times the mass of the sun?
9. What is the final stage for stars whose final masses are between 1.4 and 3 solar masses?
10. Quasars are some of the brightest objects in the universe. A single quasar can outshine an entire galaxy. Describe what causes a quasar and why its light appears so bright.
11. What information do we get about interstellar space from 21 cm radiation?
12. Describe a semi-detached binary star system.
13. Knowing how stars are usually formed, describe what you can infer about the ages of stars in the space between galaxies?
14. Why is the region near our sun (called the local bubble) very clean of gas and dust?
15. Give a brief description of the stages in the probable future of our sun.
16. Describe the sequence of how galaxies form.
17. Briefly describe at least three possible fates of the universe. Relate these to the mass in the universe.

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