标题： 具有特殊磁场的白矮星 RE J0317-853 的相位解析远紫外线 HST 光谱学 显示英文标题

标题： Phase-resolved far-ultraviolet HST spectroscopy of the peculiar magnetic white dwarf RE J0317-853

摘要： 我们展示了快速旋转、磁场极强的白矮星 RE J0317-853 的相位分辨的 FUV HST FOS 光谱。利用这些数据，我们构建了一个新的模型来描述恒星表面的磁场形态。通过球谐函数展开，我们发现磁场强度的范围为 180-800 MG。首次，由于电场和磁场的同时存在，我们能够识别出在某些相位下 1160 Å 处的一个吸收特征为“禁戒”的 1s_0 -> 2s_0 成分。 显示英文摘要

摘要： We present phase resolved FUV HST FOS spectra of the rapidly rotating, highly magnetic white dwarf RE J0317-853. Using these data, we construct a new model for the magnetic field morphology across the stellar surface. From an expansion into spherical harmonics, we find the range of magnetic field strengths present is 180-800MG. For the first time we could identify an absorption feature present at certain phases at 1160A as a ``forbidden'' 1s_0 -> 2s_0 component, due to the combined presence of an electric and magnetic field.