Astrophysics and Space Science

, Volume 2, Issue 1, pp 96–114 | Cite as

Supernovae explosions induced by pair-production instability

  • Gary S. Fraley


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 calculations. It was found that the effect of the convection on the explosions is probably not important.


Convection Pair Production Central Temperature Core Mass Supernova Explosion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© D. Reidel Publishing Company 1968

Authors and Affiliations

  • Gary S. Fraley
    • 1
  1. 1.California Institute of TechnologyPasadenaUSA

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