强磁场大质量恒星的结构与演化及相关天体的理论与实测研究

强磁场大质量恒星独特的结构与演化是天体物理中最重要的未解之谜之一，它们很可能是磁星、重质量黑洞（黑洞质量大于25M⊙）以及快速射电暴的前身天体。本项目通过求解其内部磁流体的特性，研究强磁场对大质量恒星结构与演化的影响以及它们最终的产物。同时，利用国内LAMOST中分辨率巡天数据，并结合申请各类通用光学望远镜（TAP、丽江2.4米、兴隆2.16米、南山1米和鹿林1米望远镜等），对已知强磁场大质量恒星和潜在的候选体（如：Of?p型恒星）开展后随分光和测光观测。另外，结合鹿林三色偏振仪TRIPOL对特定候选体开展偏振观测，给出候选体的统计物理特性。这些观测为理论模拟强磁场大质量恒星的结构与演化、磁浮力对对流区的影响等提供指导和限制。本项目为理解强磁场大质量恒星结构与演化以及它们与磁星、快速射电暴、重质量黑洞等有趣天体的关联做出贡献。

Magnetic massive stars are most likely the progenitors of magnetars, heavy mass black holes (Mass of black hole is higher than 25 M⊙) or fast radio bursts. Their structures and evolutions are always one of the most important open problems in astrophysics. This project will investigate the structures and evolutions of magnetic massive stars, and their destinations by solving magnetohydrodynamical equations in massive stars. Simultaneously, using LAMOST Medium-Resolution Spectroscopic Survey and kinds of optical telescopes (TAP telescope, Lijiang 2.4 meter telescope, Xinglong 2.16 meter telescope, Nanshan 1 meter telescope and Lulin 1 meter telescope et al.), the project will carry out follow-up observations for known 70 magnetic massive stars, and try to find out their candidates (such as Of?p stars). In addition, combining the TRIPOL on Lulin 1 meter telescope, the project will develop polarization observations for magnetic massive stars, and find out statistical properties. These observations will improve the theoretical model of magnetic massive stars (including the structure and evolution, the effects of magnetic buoyancy on convective zone). This project will contribute to understanding the structure and evolution of magnetic massive stars, and the relationship between them with magnetars, heavy mass black holes and the fast radio bursts.