Type 2 Supernova: Energy Source & Type 1 Comparison

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SUMMARY

Type II supernovae primarily derive their energy from gravitational collapse, resulting in a significant release of kinetic energy during the collapse of massive stars. In contrast, Type I supernovae are fueled by thermonuclear reactions triggered by the detonation of material from a companion star, adhering to the Chandrasekhar limit for mass accretion. This distinction leads to Type I supernovae exhibiting a relatively uniform absolute luminosity, while Type II supernovae display more variability in luminosity based on their mass and energy output.

PREREQUISITES
  • Understanding of supernova classifications: Type I and Type II
  • Knowledge of gravitational collapse in astrophysics
  • Familiarity with thermonuclear reactions
  • Awareness of the Chandrasekhar limit in stellar physics
NEXT STEPS
  • Research the mechanisms of gravitational collapse in massive stars
  • Study thermonuclear processes in Type I supernovae
  • Explore the implications of the Chandrasekhar limit on stellar evolution
  • Investigate the variability of luminosity in Type II supernovae
USEFUL FOR

Astronomers, astrophysicists, and students studying stellar evolution and supernova phenomena will benefit from this discussion.

goldsax
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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..

thanks
 
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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.
 
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thanks for the reply...
so ..
type 2 ...gravitational collapse energy is the main source
type 1 ...thermonuclear reaction energy is the main source

cheers
 
https://en.wikipedia.org/wiki/MoM-z14 Any photon with energy above 24.6 eV is going to ionize any atom. K, L X-rays would certainly ionize atoms. https://www.scientificamerican.com/article/whats-the-most-distant-galaxy/ The James Webb Space Telescope has found the most distant galaxy ever seen, at the dawn of the cosmos. Again. https://www.skyatnightmagazine.com/news/webb-mom-z14 A Cosmic Miracle: A Remarkably Luminous Galaxy at zspec = 14.44 Confirmed with JWST...

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