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Nuclear statistical equilibrium for Type Ia supernova simulations

Seitenzahl, Ivo R. and Townsley, Dean M. and Peng, Fang and Truran, James W. (2009) Nuclear statistical equilibrium for Type Ia supernova simulations. Atomic Data and Nuclear Data Tables, 95 (1). pp. 96-114. ISSN 0092-640X. doi:10.1016/j.adt.2008.08.001.

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We solve the equations of nuclear statistical equilibrium (NSE) for the mass fractions of 443 nuclides, including the effects of temperature dependent nuclear partition functions [T. Rauscher, F. Thielemann, At. Data Nucl. Data Tables 75 (2000) 1-351] and Coulomb corrections [G. Chabrier, A.Y. Potekhin, Phys. Rev. E 58 (1998) 4941]. The resulting mass fractions are then convolved with the new weak interaction rates for pf-shell nuclei based on large-scale shell model calculations [K. Langanke, G. Martinez-Pinedo, At. Data Nucl. Data Tables 79 (2001) 1-46] to get the rate of neutronization and the specific neutrino luminosity of matter in NSE. We present tables of the results and give examples of how the tables can be used in Type 1a supernova simulations.

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Additional Information:© 2009 Elsevier. Available online 5 October 2008. The authors thank E.F. Brown, A.C. Calder, A. Glasner, D.Q. Lamb and F.X. Timmes for their insightful discussions of various aspects of the research presented here. We are also grateful to the referee, Raphael Hix, for his insightful comments and suggestions. This work was supported by the National Science Foundation under Grant PHY 02-16783 for the Frontier Center "Joint Institute for Nuclear Astrophysics" (JINA) and by the US Department of Energy under Grant B523820 to the ASC Alliances Center for Astrophysical Flashes. J.W.T. acknowledges support from Argonne National Laboratory, which is operated under Contract No. W-31-109-ENG-38 with the DOE. Appendix A. Supplementary data Supplementary data associated with this article can be found, in the online version, at doi:10.1016/j.adt.2008.08.001.
Funding AgencyGrant Number
National Science FoundationPHY 02-16783
Department of EnergyB523820
Argonne National LaboratoryUNSPECIFIED
Department of EnergyW-31-109-ENG-38
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Deposited On:11 Jan 2009 03:09
Last Modified:08 Nov 2021 22:34

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