论文标题
大量恒星簇中的多个种群在放大镜的光度法下：理论和工具
Multiple populations in massive star clusters under the magnifying glass of photometry: Theory and tools
论文作者
论文摘要
巨大银河系和乳腺外恒星簇的星际光元素丰度变化的存在已相当最近取代了具有相同年龄的单个群集的传统范式，并取代了均匀的化学成分。已经提出了几种场景来解释这种多种恒星人口现象的起源，但到目前为止，所有人都没有重现整个关键观察范围。 互补的高分辨率光谱法，该光谱法首先揭示和表征了银河球状簇中多个人群的存在，光度法已在更大的恒星样本中研究这种现象有助于研究这种现象，从而使许多关键的观察性约束和与全球聚类的特性以及在发现和杂志中的杂志相关的杂志概述了许多关键的观察性约束和相关性。 这篇综述的目的是介绍为识别和研究已解决的恒星簇中的多个人群而设计和研究的显微基础和应用。这些方法在促进我们对群集多重人口现象的了解方面发挥了至关重要的作用，并承诺将这些调查的范围扩展到詹姆斯·韦伯（James Webb）太空望远镜的推出，甚至将这些调查的范围扩展到本地集团之外。
The existence of star-to-star light-element abundance variations in massive Galactic and extragalactic star clusters has fairly recently superseded the traditional paradigm of individual clusters hosting stars with the same age, and uniform chemical composition. Several scenarios have been put forward to explain the origin of this multiple stellar population phenomenon, but so far all have failed to reproduce the whole range of key observations. Complementary to high-resolution spectroscopy, which has first revealed and characterized chemically the presence of multiple populations in Galactic globular clusters, photometry has been instrumental in investigating this phenomenon in much larger samples of stars --adding a number of crucial observational constraints and correlations with global cluster properties-- and in the discovery and characterization of multiple populations also in Magellanic Clouds' intermediate age clusters. The purpose of this review is to present the theoretical underpinning and application of the photometric techniques devised to identify and study multiple populations in resolved star clusters. These methods have played and continue to play a crucial role in advancing our knowledge of the cluster multiple population phenomenon, and promise to extend the scope of these investigations to resolved clusters even beyond the Local Group, with the launch of the James Webb Space Telescope.
