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Prog. Theor. Phys. Vol. 84 No. 3 (1990) pp. 436-443

[ Full Text PDF : FREE ACCESS (547K) ]

Three Dimensional Simulations of Supernova Explosion. I

Yoshiyuki Yamada, Takashi Nakamura* and Ken-ichi Oohara*

Department of Physics, Kyoto University, Kyoto 606
*National Laboratory for High Energy Physics, Tsukuba 305

(Received May 26, 1990)

Abstract:

We have performed three dimensional numerical simulations of supernova explosions using (200)3 rectangular grids. As initial density distribution, we consider N=3 polytrope and the realistic presupernova star model (M11) computed by Nomoto. For each calculation we put small random perturbations in pressure and velocity. In the case N=3 polytropic star, although the fluctuation grows once, it stops growing. As a result no significant growth of fluctuations occurs except for extremely large initial perturbations. This is completely different from the preliminary simulations by Nagasawa et al. using a smoothed particle method with a small number of particles. In realistic star cases, perturbations put at the density gap corresponding to the hydrogen burning shell grow very large, which is consistent with linear analysis.


URL : http://ptp.ipap.jp/link?PTP/84/436/
DOI : 10.1143/PTP.84.436

[ Full Text PDF : FREE ACCESS (547K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 86 No. 6 (1991) pp. 1211-1225 :
    Two-Dimensional Simulations of Hydrodynamic Instability in Supernova Explosion. II
    Yoshiyuki Yamada, Tatsuo Yoshida and Mitsue Den

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