...
首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >Energetic proton observations at 1 and 5 AU 2. Rising phase of the solar cycle 23
【24h】

Energetic proton observations at 1 and 5 AU 2. Rising phase of the solar cycle 23

机译:在1和5 AU 2处的高能质子观测。太阳周期的上升阶段23

获取原文
获取原文并翻译 | 示例
           

摘要

The increasing level of solar activity at the end of 1997 coincides with the observation of solar energetic particle (SEP) events by the Wind and Ulysses spacecraft. The proximity of Ulysses to the ecliptic plane during this period allows us to study the effects of the solar activity at two different heliolongitudinal and heliocentric distances but at similar heliolatitudes. We identify the main transient proton enhancements seen by Wind and Ulysses from October 1997 to the end of December 1998, We compare their characteristics and suggest an interpretation in terms of their heliospheric location, the activity occurring at the Sun, and the conditions for particle propagation between the Sun and both spacecraft. Whereas at 1 RU different SEP events can be associated with individual coronal mass ejections (CMEs), at 5 AU long-lasting SEP events are observed while a sequence of CMEs takes place at the Sun, Continuous injection of particles from traveling CME-driven shocks, the effects of particle propagation along interplanetary magnetic field lines, acid the corotation of these field lines across the Ulysses location are the main factors responsible for these long-lasting periods of high particle intensity observed by Ulysses. [References: 45]
机译:1997年底太阳活动水平的增加与Wind和Ulysses航天器观测到的太阳高能粒子(SEP)事件相吻合。在此期间,尤利西斯(Elysses)与黄道平面的接近使我们能够研究太阳活动在两个不同的日向纵向距离和日向中心距离但在相似的日高纬度下的影响。我们确定了Wind和Ulysses从1997年10月到1998年12月底看到的主要瞬时质子增强,我们比较了它们的特征,并提出了关于它们的日球位置,太阳活动和粒子传播条件的解释。在太阳和两个航天器之间。在1 RU时,不同的SEP事件可能与单个冠状物质抛射(CME)相关,而在5 AU时,会观察到持久的SEP事件,而一系列CME在太阳下发生,CME驱动的震动不断注入粒子,粒子沿行星际磁场线传播的影响,酸化这些磁场线在尤利西斯位置上的共同旋转是造成尤利西斯观测到的这些高强度粒子长持续时间的主要因素。 [参考:45]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号