标题： 锆的太阳光球层丰度 显示英文标题

标题： The solar photospheric abundance of zirconium

摘要： 锆（Zr），以及锶和钇，在理解银河系核合成中是一个重要的元素。事实上，三元组Sr-Y-Zr构成了s过程元素的第一个峰值。尽管它普遍相关，但对太阳中锆的丰度进行的研究并不多。我们使用相同的CO5BOLD流体动力学模型来确定太阳光球中的锆丰度，该模型之前用于研究C-N-O的丰度。我们回顾了观测到的太阳光谱中可用的锆线，并选择一组线来确定锆的丰度，考虑中性及单电离锆的线。我们应用不同的线轮廓拟合策略，以对被其他元素线混合的Zr线进行可靠的分析。从中性锆线获得的丰度非常不确定，因为这些线在太阳光谱中通常被混合且较弱。然而，我们认为一些电离锆的线是可靠的丰度指示器。将集合限制为Zr II线，从CO5BOLD 3D模型大气中我们得出A(Zr)=2.62+/-0.06，其中给出的误差是线与线之间的均方根散射。 显示英文摘要

摘要： Zirconium (Zr), together with strontium and yttrium, is an important element in the understanding of the Galactic nucleosynthesis. In fact, the triad Sr-Y-Zr constitutes the first peak of s-process elements. Despite its general relevance not many studies of the solar abundance of Zr were conducted. We derive the zirconium abundance in the solar photosphere with the same CO5BOLD hydrodynamical model of the solar atmosphere that we previously used to investigate the abundances of C-N-O. We review the zirconium lines available in the observed solar spectra and select a sample of lines to determine the zirconium abundance, considering lines of neutral and singly ionised zirconium. We apply different line profile fitting strategies for a reliable analysis of Zr lines that are blended by lines of other elements. The abundance obtained from lines of neutral zirconium is very uncertain because these lines are commonly blended and weak in the solar spectrum. However, we believe that some lines of ionised zirconium are reliable abundance indicators. Restricting the set to Zr II lines, from the CO5BOLD 3D model atmosphere we derive A(Zr)=2.62+/-0.06, where the quoted error is the RMS line-to-line scatter.