论文标题
热星磁层的紫外线光谱诊断
Ultraviolet Spectropolarimetric Diagnostics of Hot Star Magnetospheres
论文作者
论文摘要
紫外线光谱法的几种空间任务和工具正在准备，例如拟议的NASA Midex Polstar项目，拟议的ESA M任务Arago和Pollux仪器以及未来Luvoir类似Luvoir的NASA旗舰任务。在Polstar的框架中，我们研究了这些观测值提供的功能，以获取有关热星磁层的磁性和等离子体特性的信息，从而帮助我们测试了基本假设，即磁层应起到迅速排出角动量的作用，从而使恒星旋转，从而同时降低净质量质量减数。这两种作用都预计会导致磁性与非磁星的演变的巨大差异。
Several space missions and instruments for UV spectropolarimetry are in preparation, such as the proposed NASA MIDEX Polstar project, the proposed ESA M mission Arago, and the Pollux instrument on the future LUVOIR-like NASA flagship mission. In the frame of Polstar, we have studied the capabilities these observatories would offer to gain information on the magnetic and plasma properties of the magnetospheres of hot stars, helping us test the fundamental hypothesis that magnetospheres should act to rapidly drain angular momentum, thereby spinning the star down, whilst simultaneously reducing the net mass-loss rate. Both effects are expected to lead to dramatic differences in the evolution of magnetic vs. non-magnetic stars.
