Keppler E, Fränz M, Korth A, Reuss M K, Blake J B, Seidel R, Quenby J J, Witte M
Max-Planck-Institut für Aeronomie, Katlenburg-Lindau, Germany.
Science. 1995 May 19;268(5213):1013-6. doi: 10.1126/science.7754379.
Measurements with the Energetic Particle Composition instrument (EPAC) aboard Ulysses show particles from near the ecliptic that were apparently accelerated by shocks associated with a corotating interaction region. The particles were detected together with the shocks and even when shocks no longer arrived at Ulysses up to -65 degrees of heliographic latitude but not beyond. Particles could have reached these latitudes along magnetic fields; such connections to the outer lower latitude heliosphere evidently do not exist above that latitude. The accelerated streams have composition similar to solar wind abundances, no dispersion, and a net inward anisotropy. The underlying composition between the recurrent stream is similar to the anomalous component of cosmic rays. The channel sensitive to high-energy protons (> 230 megaelectron volts) shows a 26-day variation of the flux superimposed on the heliospheric modulation of galactic ions.
搭载在“尤利西斯”号上的高能粒子成分探测器(EPAC)的测量结果显示,来自黄道附近的粒子显然是被与共转相互作用区相关的激波加速的。这些粒子是与激波一起被探测到的,甚至当激波不再到达“尤利西斯”号直至日球纬度-65度但不超过该纬度时也是如此。粒子可能沿着磁场到达了这些纬度;但在该纬度以上,与外低纬度日球层的这种联系显然不存在。加速流的成分与太阳风丰度相似,没有色散,且有净内向各向异性。重现流之间的基础成分与宇宙射线的反常成分相似。对高能质子(>230兆电子伏特)敏感的通道显示,通量有26天的变化,叠加在银河离子的日球调制上。