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Supernovae explosions induced by pair-production instability

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Abstract

Stars with a core mass greater than about 30 M ⊙ become dynamically unstable due to electron-positron pair production when their central temperature reaches 1.5–2.0×109 oK. 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.

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Author notes

  1. Gary S. Fraley

    Present address: Los Alamos Scientific Laboratory, Los Alamos, N.M., USA

Authors and Affiliations

  1. California Institute of Technology, Pasadena, Calif., USA

    Gary S. Fraley

Authors
  1. Gary S. Fraley
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Work supported in part by the U.S. National Aeronautics and Space Administration under Grant NsG-426.

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Fraley, G.S. Supernovae explosions induced by pair-production instability. Astrophys Space Sci 2, 96–114 (1968). https://doi.org/10.1007/BF00651498

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  • DOI: https://doi.org/10.1007/BF00651498

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