CN中微子与太阳的原始核金属性
CN Neutrinos and the Sun's Primordial Core Metalicity
摘要：
我讨论了使用中微子的CN循环和PP链约束的原始太阳核丰度的C和N在一个有趣的精度水平。对太阳内部和表面组成的比较将检验标准太阳模型（SSM）的一个关键假设，即一个均匀的零年龄太阳。它还将对最近的光球丰度测定进行交叉检查，这些测定改变了SSM和日震学之间曾经非常一致的结果。出于对流区的丰度和日震学之间的差异，我讨论的可能性，两个区域的太阳可能会出现后期阶段的金属分化与形成的气态巨行星的太阳星云。
英文摘要：
I discuss the use of neutrinos from the CN cycle and pp chain to constrain the primordial solar core abundances of C and N at an interesting level of precision. A comparison of the Sun's deep interior and surface compositions would test a key assumption of the standard solar model (SSM), a homogeneous zero-age Sun. It would also provide a cross-check on recent photospheric abundance determinations that have altered the once excellent agreement between the SSM and helioseismology. Motivated by the discrepancy between convective-zone abundances and helioseismology, I discuss the possibility that a two-zone Sun could emerge from late-stage metal differentiation in the solar nebula connected with formation of the gaseous giant planets.
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