Lanzerotti L J, Armstrong T P, Gold R E, Maclennan C G, Roelof E C, Simnett G M, Thomson D J, Anderson K A, Hawkins S E, Krimigis S M
AT&T Bell Laboratories, Murray Hill, NJ 07974, USA.
Science. 1995 May 19;268(5213):1010-3. doi: 10.1126/science.7754378.
The heliosphere instrument for spectrum, composition, and anisotropy (HISCALE) recorded the fluxes of low-energy ions and electrons (> 50 kiloelectron volts) when Ulysses crossed the southern solar polar region and revealed that the large-scale structure of the heliosphere to at least approximately -75 degrees was significantly influenced by the near-equatorial heliospheric current sheet. Electrons in particular were accelerated by the current sheet-produced and poleward-propagating interplanetary reverse shock at helioradii far from the Ulysses location. At heliolatitudes higher than approximately -75 degrees on the Ulysses ascent to the pole and approximately -50 degrees on the descent, small, less regular enhancements of the lowest energy electron fluxes were measured whose relations to the current sheet were less clear. The anomalous component of low-energy (approximately 2 to 5 megaelectron volts per nucleon) oxygen flux at the highest heliolatitudes was found to be approximately 10(-8) [per square centimeter per second per steradian (per kiloelectronvolt per nucleon)]; the anomalous Ne/O ratio was approximately 0.25.
太阳风层光谱、成分与各向异性探测仪（HISCALE）记录了“尤利西斯”号穿越太阳南极区域时低能离子和电子（>50千电子伏特）的通量，并揭示出至少在约-75度范围内太阳风层的大规模结构受到近赤道太阳风层电流片的显著影响。特别是电子在远离“尤利西斯”号位置的日心距离处，被电流片产生并向极区传播的行星际反向激波加速。在“尤利西斯”号向极点上升过程中高于约-75度的太阳纬度以及下降过程中高于约-50度的太阳纬度处，测量到最低能量电子通量有较小且不太规则的增强，其与电流片的关系不太明确。在最高太阳纬度处，低能（约每核子2至5兆电子伏特）氧通量的异常分量约为10^(-8) [每平方厘米每秒每球面度（每千电子伏特每核子）]；异常的氖/氧比值约为0.25。
