Some nuclear data needs in astrophysics
In this paper we discuss a number of astrophysical environments and how improved nuclear data could facilitate a better understanding of them. One area of interest includes proton and alpha-particle reactions with unstable nuclei which are necessary for understanding the nucleosynthesis and energy generation in hot hydrogen-burning environments. Efforts underway at LLNL and elsewhere to develop the technology for the measurement of these reaction rates are discussed. Heavy-element nucleosynthesis in the late stages of red-giant stars and supernovae requires a complete network of neutron capture rates and beta-decay rates for nuclei near and far from stability. Experimental and theoretical efforts at LLNL to supply the input data and to model the nucleosynthetic environments will be outlined. Suggestions are made as to which nuclear data are most critical for the various scenarios. 42 refs., 11 figs., 1 tab.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5601891
- Report Number(s):
- UCRL-92672; CONF-850507-20; ON: DE85012916
- Resource Relation:
- Conference: International conference on nuclear data for basic and applied science, Santa Fe, NM, USA, 13 May 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
ASTROPHYSICS
NUCLEAR REACTIONS
ALPHA REACTIONS
EXPERIMENT PLANNING
NEUTRON REACTIONS
NUCLEOSYNTHESIS
PROTON REACTIONS
R PROCESS
S PROCESS
SIMULATION
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
HADRON REACTIONS
NUCLEON REACTIONS
PLANNING
STAR EVOLUTION
SYNTHESIS
640100* - Astrophysics & Cosmology