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Explosion Models for Thermonuclear Supernovae Resulting from Different Ignition Conditions

Published online by Cambridge University Press:  19 September 2016

Eduardo Bravo  and
Domingo García-Senz
Eduardo Bravo
Affiliation:
Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Av. Diagonal 647, Barcelona, Spain, eduardo.bravo@upc.es , domingo.garcia@upc.es Institut d’Estudis Espacials de Catalunya
Domingo García-Senz
Affiliation:
Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Av. Diagonal 647, Barcelona, Spain, eduardo.bravo@upc.es , domingo.garcia@upc.es Institut d’Estudis Espacials de Catalunya

Summary

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We have explored in three dimensions the fate of a white dwarf of mass of 1.38 M ⊙ as a function of different initial locations of carbon ignition, with the aid of a SPH code. The calculated models cover a variety of possibilities ranging from the simultaneous ignition of the central volume of the star to the off-center ignition in multiple scattered spots. In the former case, the possibility of a transition to a detonation when the mean density of the nuclear flame decreases to ρ ≃ 2 × 107 g cm−3 and its consequences are discussed. In the last case, the dependence of the results as a function of the number of initial igniting spots and the chance of some of these models to evolve to the pulsating delayed detonation scenario are also outlined.

Information

Type
Part IV Supernovae: Models
Information
International Astronomical Union Colloquium , Volume 192: Cosmic Explosions , 2005 , pp. 339 - 344
Copyright
Copyright © Springer-Verlag 2005

References

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