Beskjeder - Side 2
There will be no lectures on the following Mondays: 11th March, 18th March, 25th March, 1st April, 13th May.
The assignement for next weeks exercise class (1st of March) can be found here .
The assignement for the exercise class on the 8th of March is a mandatory hand in. Your hand in should be your solution to the mid term exam from 2006, which you can find here . Remember, the point is for you to get feedback on your own work, so do it without glancing at solution suggestions. Anything that looks like an attempt at solving the exercises will give you a pass. If you can't come to the exercise class on Friday the 8th of March to deliver it, please drop it in may post shelf which you can find in the northern corridor on the ground floor of the astrophysics building, no later than Friday the 8th of March at 14:30.
Remeber that this week's exercises can be found here one of the extra exercises (1.13), fell out of the original posting of the document, so if you've already done it, you should do 1.13 too.
The assignement for the exercise class Friday the 22nd of February can be found here .
You find this weeks assignement for the exercise class on this link .
What we would like you to think about before Friday's exercise session is: Do exercise 1.1 from Elgaroey's lecture notes. Then try and think of a universe that is: a) Homogeneous, but not isotropic b) Isotropic, but not homogeneous. How would you go about trying to detect if we were living in such universes. Does the Copernican principle hold in you universe a)?
Additional exercise is exercise 1.4 from Elgaroey's notes
If you had trouble with last weeks line element exercise or just want to try a more detailed approach, have a look at exercises 1.2 and 1.3 from Elgaroey's notes
The problem we want you to have a go at before next Friday's exercise session is the following: Draw what a triangle would look like in a flat space, a positively curved space and a negatively curved space.
What conclusion can you draw about the the angular resolution (size seen) of objects (for instance stars or galaxies) in the three types of spaces. Where would they appears smaller? Larger? Try and make a drawing to explain.
You should also have a look at the exercise from the David's slides page before Robertson Walker line element.
For those who consider to take the master in astrophysics: There will be a presentation of possible master projects on TUESDAY 22. OF JANUARY (THIS TUESDAY) 12:15 - 13:00 IN PEISESTUA ROOM 304.
The lectures and exercise will start next week, that is on the 21st and 25th of January respectively.
If you can, please hold off printing the lecture notes for a little while. A new version will be posted in a few days with a few added exercises. In the meantime feel free to read from the first chapter online, or print just the first chapter (the extra exercises will be added after the the ones that are already there.)
The exercise classes will start Friday next week (the 25th of January). We will start in Peisestua (303), but will move if we are too many. Remember to do the following before the exercise: Go out at night and look up at the night sky. What conclusions can you draw on the size, age and evolution of the universe from what you see? We will discuss your findings in the first exercise class.