Supernovae Definition and 54 Threads

Supernovae fans may find this of interest, I know I did: http://arxiv.org/abs/astro-ph/0402404

if you have a three solar mass star then it eneters into supernovae, how much mass is lost into space?

Why is it that we think ultra high energy cosmic rays are emitted from supernovae.

http://arxiv.org/abs/astro-ph/0402512 We have discovered 16 Type Ia supernovae (SNe Ia) with the Hubble Space Telescope (HST) and have used them to provide the first conclusive evidence for cosmic deceleration that preceded the current epoch of cosmic acceleration. These objects, discovered...