Predictions of the solar wind interaction with Comet Grigg-Skjellerup
Predictions of the solar wind interaction with Comet Grigg-Skjellerup
复制标题
太阳风与格里格-舍勒鲁普彗星相互作用的预测
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
A. Johnstone
中科院分区：
文献类型：
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作者：
D. Huddleston;A. Coates;A. Johnstone
1992年7月10日乔托号航天器计划与格里格 - 斯克杰利厄普彗星的相遇有望极大地拓展我们对太阳风与彗星相互作用的认识。虽然在此之前已有航天器执行过探测彗星的任务，但此次任务具有探索性，因为目标彗星的年龄要大得多，因此它的气体产生率比哈雷彗星（大约低200倍）或贾科比尼 - 津纳彗星（大约低10倍）低得多。在此我们对弓形激波和接触面特征的位置进行理论预测，并将类似的预测与之前相遇时观测到的特征进行比较。我们讨论了这些模型所采用的流体类型理论在太阳风中强彗星和弱彗星情况下的适用性。
The planned encounter of the Giotto spacecraft with comet Grigg-Skjellerup on 10th July 1992 promises to extend our knowledge of the solar wind interaction with comets substantially. While there have been spacecraft missions to comets before now, this mission is exploratory in the sense that the target comet is much older and there-fore it has a much lower gas production rate than comets Halley (by a factor approximately 200) or Giacobini-Zinner (factor approximately 10). Here we present theoretical predictions for the location of the bow shock and contact surface features, and compare similar predictions with the observed features at the previous encounters. We discuss the applicability of fluid-type theory which these models employ, in the case of strong and weak comets in the solar wind.