AI 中文总结
研究利用日冕地震学结合斯托克斯IQU观测及相关理论进展，设计新反演方案，通过综合统计分析，实现以与斯托克斯IQUV光谱偏振测量相当精度推断日冕磁场方向和强度，适用于特定谱线对。
AI 中文摘要
日冕发射线的斯托克斯IQUV信号常规测量具有挑战性，特别是小口径仪器观测。近期研究探索利用日冕地震学和传播的阿尔文波诊断日冕磁场。本文基于日冕偏振理论进展，设计新反演方案并扩展CLEDB软件包，利用两条日冕发射线的斯托克斯IQU观测结合日冕地震学推导的B_POS估计值。通过综合统计分析表明，这种诊断组合能以与斯托克斯IQUV光谱偏振测量相当的精度推断磁场方向和强度，适用于新一代仪器常规观测的Fe XIII 1074.7 nm和1079.8 nm线对。
英文摘要
The routine measurement of the Stokes $IQUV$ signals of emission lines in the solar corona is still a challenging endeavor, particularly for observations using small-aperture instruments. Therefore, recent studies have explored the use of coronal seismology and propagating Alfvénic waves as alternative diagnostics of the coronal magnetic field. In particular, Z. Yang et al. showed that plane-of-sky (POS) phase-speed measurements provide a direct and consistent diagnostic of the POS magnetic-field component (B$_{\text{POS}}$). Building on recent theoretical advances in solar coronal polarization, we devise a novel inversion scheme and extended the CLEDB software package to exploit Stokes $IQU$ observations of two coronal emission lines combined with coronal seismology-derived B$_{\text{POS}}$ estimations. Using this framework, we perform a comprehensive statistical analysis demonstrating that this combination of diagnostics allows us to infer both magnetic-field orientation and strength with an accuracy comparable to that of Stokes $IQUV$ spectropolarimetry. This type of diagnostics is particularly suited for the Fe xiii 1074.7 and 1079.8 nm line pair routinely observed by new-generation instruments such as DKIST Cryo-NIRSP, DL-NIRSP, MLSO CoMP/UCoMP, and targeted by the future COSMO and CORSAIR efforts.
Comments16 pages. Published in The Astrophysical Journal
Journal refAlin Razvan Paraschiv (2026), ApJ, Volume 1008, Number 1, Page 29
