Explosive Nucleosynthesis in Astrophysics

  • the nuclear processes in astrophysics are briefly reviewed, and the explosive hydrogen burning are addressed and calculated with some new reaction rates obtained from the most recent experimental data. We pointed out that the reaction flux from the hot pp–chain into the CNO cycle through the proton capture on 11C may overcome the flux through the 3α process. the abundance of 18F calculated with the new rates of the 18F(p, γ) and (p,α) is 1.8 times larger than the previous one. The calculated results of the rp–process at the typical condition of the X-ray burst show that the abundances of the waiting point nuclei 89Ru and 93Pd, using the recent experimental β–decay life times, are about 4 times larger than the previous ones.
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CHEN Yong-Shou, SHU Neng-Chuan and WU Kai-Su. Explosive Nucleosynthesis in Astrophysics[J]. Chinese Physics C, 2004, 28(12): 1349-1355.
CHEN Yong-Shou, SHU Neng-Chuan and WU Kai-Su. Explosive Nucleosynthesis in Astrophysics[J]. Chinese Physics C, 2004, 28(12): 1349-1355. shu
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Received: 2003-11-29
Revised: 1900-01-01
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Explosive Nucleosynthesis in Astrophysics

    Corresponding author: CHEN Yong-Shou,
  • China Institute of Atomic Energy,Beijing 102413,China2 Institute of Theoretical Physics,CAS,Beijing 100080,China

Abstract: the nuclear processes in astrophysics are briefly reviewed, and the explosive hydrogen burning are addressed and calculated with some new reaction rates obtained from the most recent experimental data. We pointed out that the reaction flux from the hot pp–chain into the CNO cycle through the proton capture on 11C may overcome the flux through the 3α process. the abundance of 18F calculated with the new rates of the 18F(p, γ) and (p,α) is 1.8 times larger than the previous one. The calculated results of the rp–process at the typical condition of the X-ray burst show that the abundances of the waiting point nuclei 89Ru and 93Pd, using the recent experimental β–decay life times, are about 4 times larger than the previous ones.

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