论文标题
Asterosemology揭示了早期B星HD 43317中的近核磁场强度
Asteroseismology reveals the near-core magnetic field strength in the early-B star HD 43317
论文作者
论文摘要
Spectropolarimetic运动已经确定，大约10％的大矮星恒星的表面存在大规模的磁场。但是，对于它们的深度内部，缺乏磁场测量值。重力模式脉动的星空学结合了早期B主序列星HD HD HD 43317的旋转磁流动力计算，将其磁场强度限制为大约$ 5 \ times10^{5} $ G，仅在其对流核心之外。这项用于磁敏感学的概念验证研究为大型恒星内磁场的观察场特征打开了一个新窗口。
Spectropolarimetic campaigns have established that large-scale magnetic fields are present at the surfaces of approximately 10% of massive dwarf stars. However, there is a dearth of magnetic field measurements for their deep interiors. Asteroseismology of gravity-mode pulsations combined with rotating magneto-hydrodynamical calculations of the early-B main-sequence star HD 43317 constrain its magnetic field strength to be approximately $5\times10^{5}$ G just outside its convective core. This proof-of-concept study for magneto-asteroseismology opens a new window into the observational characterisation of magnetic fields inside massive stars.
