Abstract Based on a new screening Coulomb model, this paper discusses the effect of electron screening on proton capture reaction of $^{23}$Mg. The derived result shows that, in some considerable range of stellar temperatures, the effect of electron screening on resonant reaction is prominent; on the non-resonant reaction the effect is obvious only in the low stellar temperatures. The reaction rates of $^{23}$Mg(p, $\gamma )^{24}$Al would increase 15%--25% due to the fact that the electron screening are considered in typical temperature range of massive mass white dwarfs, and the results undoubtedly affect the nucleosynthesis of some heavier nuclei in massive mass white dwarfs.
Received: 18 August 2006
Revised: 18 December 2006
Accepted manuscript online:
(Faint blue stars (including blue stragglers), white dwarfs, degenerate stars, nuclei of planetary nebulae)
Fund: Project
supported by the National Natural Science Foundation of China (Grant
No~10347008).
Cite this article:
Liu Hong-Lin(刘宏林), Liu Men-Quan(刘门全), Lai Xiang-Jun (赖祥军), and Luo Zhi-Quan(罗志全) Re-evaluation of the 23Mg(p, $\gamma$)24Al reaction rate 2007 Chinese Physics 16 1637
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