ast hw

1) What is meant by multiple star forming generations? How does this process help to form Earth-like planets?

2) Why are neutron stars expected to be pulsars? Explain why a pulsar might not look like a pulsar when viewed through a telescope.

3) What are population II stars? Where are they located? What is the underlying reason for the difference in Pop I and Pop II stars?

4) What is the exit cone? What is its value at the photon sphere? Why?

5) How are elliptical galaxies classified? Why is this scheme subjective in nature? When might an E7 galaxy look like an E0?

6) When and where do open clusters form? Do they contain Pop I or Pop II stars? 

7) Why is the sky blue? How is this information related to the procedure of searching for a SMBH at the center of our galaxy?

8) Define symmetry so far as astronomy is concerned. What is a symmetry break? Briefly discuss the symmetry break for the electromagnetic and weak nuclear forces.