Formation of nuclear "pasta" in supernovae

Gentaro Watanabe, Hidetaka Sonoda, Toshiki Maruyama, Katsuhiko Sato, Kenji Yasuoka, Toshikazu Ebisuzaki

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

In supernova cores, nuclear "pasta" phases such as a triangular lattice of rodlike nuclei and layered structure of slablike nuclei are considered to exist. However, it is still unclear whether or not they are actually formed in collapsing supernova cores. Using ab initio simulations called quantum molecular dynamics, here we solve this problem by demonstrating that a lattice of rodlike nuclei is formed from a bcc lattice by compression. We also find that, in the transition process, the system undergoes a zigzag configuration of elongated nuclei, which are formed by a fusion of two original spherical nuclei.

Original languageEnglish
Article number121101
JournalPhysical Review Letters
Volume103
Issue number12
DOIs
Publication statusPublished - 2009 Sep 14

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supernovae
nuclei
fusion
molecular dynamics
configurations
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Watanabe, G., Sonoda, H., Maruyama, T., Sato, K., Yasuoka, K., & Ebisuzaki, T. (2009). Formation of nuclear "pasta" in supernovae. Physical Review Letters, 103(12), [121101]. https://doi.org/10.1103/PhysRevLett.103.121101

Formation of nuclear "pasta" in supernovae. / Watanabe, Gentaro; Sonoda, Hidetaka; Maruyama, Toshiki; Sato, Katsuhiko; Yasuoka, Kenji; Ebisuzaki, Toshikazu.

In: Physical Review Letters, Vol. 103, No. 12, 121101, 14.09.2009.

Research output: Contribution to journalArticle

Watanabe, G, Sonoda, H, Maruyama, T, Sato, K, Yasuoka, K & Ebisuzaki, T 2009, 'Formation of nuclear "pasta" in supernovae', Physical Review Letters, vol. 103, no. 12, 121101. https://doi.org/10.1103/PhysRevLett.103.121101
Watanabe G, Sonoda H, Maruyama T, Sato K, Yasuoka K, Ebisuzaki T. Formation of nuclear "pasta" in supernovae. Physical Review Letters. 2009 Sep 14;103(12). 121101. https://doi.org/10.1103/PhysRevLett.103.121101
Watanabe, Gentaro ; Sonoda, Hidetaka ; Maruyama, Toshiki ; Sato, Katsuhiko ; Yasuoka, Kenji ; Ebisuzaki, Toshikazu. / Formation of nuclear "pasta" in supernovae. In: Physical Review Letters. 2009 ; Vol. 103, No. 12.
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