Recent content by szcsongor

Thanks for trying to help. I think I see now how I should proceed with this. I also found clues in the course material now when I read through it: If we "put in" an other type of neutrino into the universe there should be less baryonic matter to comply with the principle of conservation of...

Hi, Thanks for the quick reply. I was on holiday, so couldn't answer sooner. I was thinking about this question but unfortunately I don't know how to start solving it. I guess there are some relations (equations?) to use here but I'm unable to see it :( The temperature of the universe is...

Hi, I got this question on a recent astronomy course but can't really find the right answer (rough translation from Swedish): If there was a fourth neutrino type it would have affected Universe's development the following way: a. more photons and more He-4 generated b. less photons and less...