论文标题
达到核反应速率的太阳测量
Towards solar measurements of nuclear reaction rates
论文作者
论文摘要
核反应速率是恒星进化模型中的基本成分。与质子蛋白链中初始反应有关的天体物理S因子在1％的水平上尚不确定，这在恒星的理论年龄中造成了系统的但通常没有传播的相似顺序误差。在这项工作中，我们研究了使用HelioSesology和太阳中微子改善PP链和CNO循环中该反应速率测量的前景。我们表明，当改善太阳能模型的其他方面时，应使用当前的太阳能数据将测量的精度几乎提高到一个数量级，从而提高了该测量的精度，因此，低质量恒星年龄的相应不确定性以相似的量。
Nuclear reaction rates are a fundamental yet uncertain ingredient in stellar evolution models. The astrophysical S-factor pertaining to the initial reaction in the proton-proton chain is uncertain at the 1% level, which contributes a systematic but generally unpropagated error of similar order in the theoretical ages of stars. In this work, we study the prospect of improving the measurement of this and other reaction rates in the pp chain and CNO cycle using helioseismology and solar neutrinos. We show that when other aspects of the solar model are improved, then it shall be possible using current solar data to improve the precision of this measurement by nearly an order of magnitude, and hence the corresponding uncertainty on the ages of low-mass stars by a similar amount.
