标题： 银河磁场的新知识 显示英文标题

标题： New knowledge of the Galactic magnetic fields

摘要： 我们银河系的磁场是宇宙射线传输的主要媒介。在过去的十年里，通过测量银河系磁场，获得了许多新的知识。在银河盘面中，通过对大量新发现的脉冲星的RM值分析，在比以往任何时候都更大的区域内描绘出了沿旋臂的大尺度磁场，并且发现在旋臂和非旋臂区域方向交替变化。银河晕中的环向磁场被发现具有上下对称性，这表明晕中有A0模发电机在运行。从脉冲星RM数据获得的大尺度磁场强度被发现随银河系中心距离指数增加。与小尺度上陡峭的科马洛夫斯基（Kolmogorov）磁场能谱相比，大尺度磁场显示出浅层破碎的空间磁场能谱。 显示英文摘要

摘要： The magnetic fields of our Milky Way galaxy are the main agent for cosmic rays to transport. In the last decade, much new knowledge has been gained from measurements of the Galactic magnetic fields. In the Galactic disk, from the RMs of a large number of newly discovered pulsars, the large-scale magnetic fields along the spiral arms have been delineated in a much larger region than ever before, with alternating directions in the arm and interarm regions. The toroidal fields in the Galactic halo were revealed to have opposite directions below and above the Galactic plane, which is an indication of an A0 mode dynamo operating in the halo. The strength of large-scale fields obtained from pulsar RM data has been found to increase exponentially towards the Galactic center. Compared to the steep Kolmogorov spectrum of magnetic energy at small scales, the large-scale magnetic fields show a shallow broken spatial magnetic energy spectrum.