Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Supernova energy

  1. May 10, 2012 #1
    where does most of the energy arise in a type 2 supernova event? is it thermonuclear or the change form gravitiational energy to kinetic during the collapse?

    is the answer the same for a type 1 event..

  2. jcsd
  3. May 10, 2012 #2


    User Avatar
    Science Advisor
    Gold Member

    A type II supernova results from gravitational collapse of a massive star. A type I supernova is due to detonation of matter siphoned from a companion star. There is a fairly strict limit on the mass of material that can be accreted before detonation [the Chandrasekhar limit], hence, their relatively uniform absolute luminosity. The luminosity of Type II supernova is obviously variable, but, the really big ones probably have pretty consistent outputs.
    Last edited: May 10, 2012
  4. May 10, 2012 #3
    thanks for the reply...
    so ..
    type 2 ...gravitational collapse energy is the main source
    type 1 ...thermonuclear reaction energy is the main source

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook