AI 中文总结
本研究通过监测太阳磁周期内CH与CN分子带的变化，发现磁周期驱动CH/CN反相关，提示球状星团多星族难题的光谱异常或与表面磁覆盖度差异有关。
AI 中文摘要
光谱监测调查表明，太阳的磁周期会改变光球结构，干扰分子线的形成。与此同时，球状星团的研究长期围绕多星族难题展开，该现象最显著的特征是CH与CN分子带的反相关，用于区分第一代和第二代恒星。我们系统监测了CH和CN分子带随太阳磁周期的变化行为，证实日面积分的太阳光谱存在由磁周期驱动的明显CH/CN反相关。研究结果表明，定义多星族难题的光谱和测光异常，可能与不同表面磁覆盖度的差异光谱响应存在物理关联。
英文摘要
Spectroscopic monitoring surveys have shown that the magnetic cycle alters the photospheric structure of the Sun, perturbing the formation of molecular lines. In parallel, the study of Globular Clusters has remained centred on the multiple stellar populations conundrum, a phenomenon defined-most notably-by the anti-correlation between CH and CN molecular bands, serving to distinguish between first-population and second-population stars. We systematically monitored the behaviour of the CH and CN molecular bands as a function of the solar magnetic cycle. We demonstrate that the disc-integrated solar spectrum exhibits a distinct CH/CN anti-correlation driven by the magnetic cycle. Our results suggest that the spectroscopic and photometric anomalies defining the multiple populations conundrum may be physically linked to a differential spectral response to varying degrees of surface magnetic coverage.
Comments19 pages, 7 figures. A&A, in press. Abstract shortened for arXiv
DOI：10.1051/0004-6361/202661207
