Smith E J, Marsden R G, Page D E
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109-8099, USA.
Science. 1995 May 19;268(5213):1005-7. doi: 10.1126/science.7754377.
Ulysses has explored the field and particle environment of the sun's polar region. The solar wind speed was fast and nearly constant above -50 degrees latitude. Compositional differences were observed in slow (low-latitude) solar wind and in fast (high-latitude) solar wind. The radial magnetic field did not change with latitude, implying that polar cap magnetic fields are transported toward the equator. The intensity of galactic cosmic rays was nearly independent of latitude. Their access to the polar region is opposed by outward-traveling, large amplitude waves in the magnetic field.
“尤利西斯”号探测器探测了太阳极地地区的磁场和粒子环境。在纬度高于50度的区域，太阳风速度很快且几乎恒定。在慢速（低纬度）太阳风和快速（高纬度）太阳风中观测到了成分差异。径向磁场并不随纬度变化，这意味着极冠磁场正被输运至赤道。银河系宇宙射线的强度几乎与纬度无关。它们进入极地地区受到磁场中向外传播的大幅度波的阻碍。
