Physical cosmology learning sites

AI Thread Summary
Several users recommend websites for learning about physical cosmology, highlighting resources like Physics Forums, which offers a variety of textbooks and articles. Another suggested site is Cosmology 101, featuring numerous articles and textbook-style content, with an emphasis on the common misconceptions section. Additionally, a tutorial from UCLA's astronomy department is noted as a valuable resource. These sites collectively provide a solid foundation for anyone interested in the study of physical cosmology. Engaging with these resources can enhance understanding of the subject significantly.
Entr0py
Messages
102
Reaction score
1
Hi all! Where are some good places on the Internet where I can learn about physical cosmology? Specifically any good websites that are devoted to physical cosmology that you know about?
 
Space news on Phys.org
https://en.wikipedia.org/wiki/Recombination_(cosmology) Was a matter density right after the decoupling low enough to consider the vacuum as the actual vacuum, and not the medium through which the light propagates with the speed lower than ##({\epsilon_0\mu_0})^{-1/2}##? I'm asking this in context of the calculation of the observable universe radius, where the time integral of the inverse of the scale factor is multiplied by the constant speed of light ##c##.
The formal paper is here. The Rutgers University news has published a story about an image being closely examined at their New Brunswick campus. Here is an excerpt: Computer modeling of the gravitational lens by Keeton and Eid showed that the four visible foreground galaxies causing the gravitational bending couldn’t explain the details of the five-image pattern. Only with the addition of a large, invisible mass, in this case, a dark matter halo, could the model match the observations...
Hi, I’m pretty new to cosmology and I’m trying to get my head around the Big Bang and the potential infinite extent of the universe as a whole. There’s lots of misleading info out there but this forum and a few others have helped me and I just wanted to check I have the right idea. The Big Bang was the creation of space and time. At this instant t=0 space was infinite in size but the scale factor was zero. I’m picturing it (hopefully correctly) like an excel spreadsheet with infinite...
Back
Top