Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-26T17:30:22.931Z Has data issue: false hasContentIssue false
  • English
  • Français

Neutrino-driven supernova explosions powered by nuclear reactions

Published online by Cambridge University Press:  05 September 2012

K. Nakamura ,
T. Takiwaki ,
K. Kotake  and
N. Nishimura
K. Nakamura
Affiliation:
Division of Theoretical Astronomy, National Astronomical Observatory of Japan, Osawa 2-21-1, Mitaka, Tokyo, Japan181-8588 email: [email protected]
T. Takiwaki
Affiliation:
Division of Theoretical Astronomy, National Astronomical Observatory of Japan, Osawa 2-21-1, Mitaka, Tokyo, Japan181-8588 email: [email protected]
K. Kotake
Affiliation:
Division of Theoretical Astronomy, National Astronomical Observatory of Japan, Osawa 2-21-1, Mitaka, Tokyo, Japan181-8588 email: [email protected] Center for Computational Astrophysics, National Astronomical Observatory of Japan, Osawa 2-21-1, Mitaka, Tokyo, Japan181-8588
N. Nishimura
Affiliation:
Department Physik, Universität Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland GSI, Helmholtzzentrum für Schwerioneneforschung GmbH, Planckstraße 1, 64291 Darmstadt, Germany
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We have investigated the revival of a shock wave by nuclear burning reactions at the central region of core-collapse supernovae. For this purpose, we performed hydrodynamic simulations of core collapse and bounce for 15 M⊙ progenitor model, using ZEUS-MP code in axi-symmetric coordinates. Our numerical code is equipped with a simple nuclear reaction network including 13 α nuclei form 4He to 56Ni, and accounting for energy feedback from nuclear reactions as well as neutrino heating and cooling. We found that the energy released by nuclear reactions is significantly helpful in accelerating shock waves and is able to produce energetic explosion even if the input neutrino luminosity is low.

Keywords

hydrodynamicsneutrinosnuclear reactionsnucleosynthesisabundancesshock wavessupernovae: general
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S279: Death of Massive Stars: Supernovae and Gamma-Ray Bursts , April 2011 , pp. 365 - 366
Copyright
Copyright © International Astronomical Union 2012

References

Limongi, M. & Chieffi, A. 2006, ApJ, 647, 483CrossRefGoogle Scholar
Marek, A. & Janka, H.-T. 2009, ApJ, 694, 664CrossRefGoogle Scholar
Nakamura, K., Takiwaki, T., Kotake, K., & Nishimura, N. in preparationGoogle Scholar
Scheck, L., Janka, H.-T., Foglizzo, T., & Kifonidis, K. 2008, A&A, 477, 931Google Scholar