Supernovae explosions induced by pair-production instability

  title={Supernovae explosions induced by pair-production instability},
  author={Gary S. Fraley},
  journal={Astrophysics and Space Science},
  • G. Fraley
  • Published 1 August 1968
  • Physics
  • Astrophysics and Space Science
Stars with a core mass greater than about 30 M ⊙ become dynamically unstable due to electron-positron pair production when their central temperature reaches 1.5–2.0×109oK. The colapse and subsequent explosion of stars with core masses of 45, 52, and 60 M ⊙ is calculated. The range of the final velocity of expansion (3400–8500 km/sec) and of the mass ejected (1–40 M ⊙) is comparable to that observed for type II supernovae. A dynamical model of convection is derived and included in the… Expand
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Keywords: equations : differentielles ; stabilite ; transport ; transfert de chaleur ; mecanique des : fluides ; ondes Reference Record created on 2005-11-18, modified on 2016-08-08