Supernova

Significance

• element production
• cosmological distance indicators
  • standard candles

2 Types

Thermal runaway Supernovae

• binary stars
  • 1 is white dwarf
  • another ➡️ giant
    • mass transfer to smaller
      • reaching Chandrashekhar limit by white dwarf
        • 1.4x(Msun)
        • mass accretes
• C & O fuse due to mass accreation
  • uncontrolled nuclear Rxn
• outshine entire galaxy

Core Collapse Supernovae

• core running out of fuel
• massive shockwave
• formⁿ neutron star
  • or black hole formed if star was very massive