Final exam comments + solutions.

Some comments on the final exam.

1. There was an issue with the exercise on black holes related to the Schwarzschild Radius. As you can see from the solutions, one question somehow did not make it onto the final version of the exam. This turned 2 more basic questions into one more complicated question. We are aware this created confusion, and will assess and likely adjust our evaluation of this question.

2.  There was a minus sign wrong in the IMF question. You will get full credit regardless of whether you used x=2.35 or x=-2.35.

3. There was confusion on the cgs value of H0, which required knowledge of the numerical value of Mpc in cm. You will get full credit on this exercise in case you derived the correct expression for tau_e, but were not able to compute z_max because of this.

Apologies for this confusion!

Exam + solutions (in red)

/studier/emner/matnat/astro/AST4320/h14/beskjeder/solutions.pdf