论文标题
py核反应对白色矮人恒星进化的影响
Effects of Pycnonuclear Reactions on White Dwarf Stellar Evolution
论文作者
论文摘要
本文档介绍了一项数值研究，该研究对高密度核反应，pycnoncolear反应的影响对伴侣恒星的呈现至关重要的白矮人的进化。主要是我们寻求可观察的特性，这些特性可能会有所不同，当时我们将这些具有不同微物理假设的核反应包括在内。这些不同的假设包括有效的核子核子相互作用，晶格结构和晶体极化特征。我们的结果表明，尽管我们发现甲核反应率有一些显着差异，但差异并没有导致白矮人进化的可观察到的差异。其次，我们检查当假定曲核反应发生以及假定没有发生的曲核反应时，可观察到的特性的差异。在这种情况下，我们的计算表明半径，$ r $和有效温度，$ t_ {eff} $，在我们用于模拟的停止条件下，$ l_ {nuc}> 10^{8} {8} \ thinspace \ thinspace \ thinspace \ rm {l} _ {l} _ { $ 10^{8} $太阳能发光。第三，我们探讨了温度升高对pycnoncoil速率的经常被忽视的影响。
This document presents a numerical study of the effects of high density nuclear reactions, pycnonuclear reactions, on the evolution of white dwarfs that accrete matter from a companion star. Primarily we seek observable properties that might be different when we include these nuclear reactions with varying microphysical assumptions. These different assumptions include effective nucleon-nucleon interactions, lattice structures and crystal polarization characteristics. Our results indicate that, although we find some significant differences in pycnonuclear reaction rates, the differences do not result in observable differences in the white dwarf evolution. Secondarily we examine the differences in observable properties when pycnonuclear reactions are assumed to happen and when they are assumed to not happen. In this case, our calculations indicate there can be observable differences in the radius, $R$, and the effective temperature, $T_{eff}$, at the stopping condition we use for our simulations, $L_{nuc} > 10^{8}\thinspace \rm{L}_{\odot}$, that is the total rate of energy released by nuclear fusion is greater than $10^{8}$ solar luminosities. Thirdly we explore the often neglected effect of temperature enhancement to pycnonuclear rates.
