The JINA REACLIB database: its recent updates and impact on type-1 x-ray bursts

Richard H. Cyburt, A. Matthew Amthor, Ryan Ferguson, Zach Meisel, Karl Smith, Scott Warren, Alexander Heger, R. D. Hoffman, T. Rauscher, Alexander Sakharuk, Hendrik Schatz, Friedrich-Karl Thielemann, Michael Wiescher

Research output: Contribution to journalArticlepeer-review

493 Citations (Scopus)
262 Downloads (Pure)

Abstract

We present results from the JINA REACLIB project, an ongoing effort to maintain a current and accurate library of thermonuclear reaction rates for astrophysical applications. Ongoing updates are transparently documented and version tracked, and any set of rates is publicly available and can be downloaded via a Web interface at http://groups.nscl.msu.edu/jina/reaclib/db/. We discuss here our library V1.0, a snapshot of recommended rates for stable and explosive hydrogen and helium burning. We show that the updated reaction rates lead to modest but significant changes in full network, one-dimensional X-ray burst model calculations, compared with calculations with previously used reaction rate sets. The late time behavior of X-ray burst light curves shows significant changes, suggesting that the previously found small discrepancies between model calculations and observations may be solved with a better understanding of the nuclear input. Our X-ray burst model calculations are intended to serve as a benchmark for future model comparisons and sensitivity studies, as the complete underlying nuclear physics is fully documented and publicly available.

Original languageEnglish
Pages (from-to)240-252
Number of pages13
JournalAstrophysical Journal, Supplement Series
Volume189
Issue number1
DOIs
Publication statusPublished - Jul 2010

Keywords

  • THERMONUCLEAR REACTION-RATES
  • WEAK-INTERACTION RATES
  • PROCESS NUCLEOSYNTHESIS
  • CAPTURE CROSS-SECTIONS
  • abundances
  • nucleosynthesis
  • INTERMEDIATE-MASS NUCLEI
  • RP-PROCESS
  • MODEL CALCULATIONS
  • nuclear reactions
  • X-rays: bursts
  • PROTON DRIP-LINE
  • HOT CNO CYCLE
  • ACCRETING NEUTRON-STARS

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