Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-01-12
Phys.Rev.C75:042801,2007
Astronomy and Astrophysics
Astrophysics
6pages, 3figures
Scientific paper
10.1103/PhysRevC.75.042801
Nuclear ``pasta'', nonspherical nuclei in dense matter, is predicted to occur in collapsing supernova cores. We show how pasta phases affect the neutrino transport cross section via weak neutral current using several nuclear models. This is the first calculation of the neutrino opacity of the phases with rod-like and slab-like nuclei taking account of finite temperature effects, which are well described by the quantum molecular dynamics. We also show that pasta phases can occupy 10--20% of the mass of supernova cores in the later stage of the collapse.
Ebisuzaki Toshikazu
Sato Katsuhiko
Sonoda Hidetaka
Takiwaki Tomoya
Watanabe Gentaro
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