- #1
resurgance2001
- 197
- 9
Hi
I am working on an assignment which is has asked us to derive an expression for a differential number count of supernovae in a euclidean flat non-expanding space.
I am bit perplexed by this question and am wondering whether it is a trick question. We are allowed to do research to find an answer outside the textbook we have so long as we quote any sources. I have dug around on the net and can't find anything at the moment that seems useful.
I am stuck because my understanding was/is that supernovae are events rather than 'objects'. I have read somewhere that it is estimate that there is a supernovae once every second in the whole universe. Supernovae only last for a few weeks before they die out, so I don't see exactly how one could count them - at least not in the same way as one might count galaxies or some specific type of star. Since this whole topic is quite new to me, I could be completely wrong and am barking up the wrong tree. Any way, any pointers or suggestions would be greatly welcome. For one thing I am actually still trying to understand properly what a differential number count is. Thanks
I am working on an assignment which is has asked us to derive an expression for a differential number count of supernovae in a euclidean flat non-expanding space.
I am bit perplexed by this question and am wondering whether it is a trick question. We are allowed to do research to find an answer outside the textbook we have so long as we quote any sources. I have dug around on the net and can't find anything at the moment that seems useful.
I am stuck because my understanding was/is that supernovae are events rather than 'objects'. I have read somewhere that it is estimate that there is a supernovae once every second in the whole universe. Supernovae only last for a few weeks before they die out, so I don't see exactly how one could count them - at least not in the same way as one might count galaxies or some specific type of star. Since this whole topic is quite new to me, I could be completely wrong and am barking up the wrong tree. Any way, any pointers or suggestions would be greatly welcome. For one thing I am actually still trying to understand properly what a differential number count is. Thanks