Surface-Exosphere-Magnetosphere System Of Mercury
Surface-Exosphere-Magnetosphere System Of Mercury
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DOI：
10.1007/s11214-005-3593-z
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发表时间：
2005-08
影响因子：
10.3
通讯作者：
A. Milillo;P. Wurz;S. Orsini;D. Delcourt;E. Kallio;R. Killen;H. Lammer;S. Massetti;A. Mura;S. Barabash;G. Cremonese;I. Daglis;E. Angelis;A. M. Lellis;S. Livi;V. Mangano;K. Torkar
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文献类型：
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作者：
A. Milillo;P. Wurz;S. Orsini;D. Delcourt;E. Kallio;R. Killen;H. Lammer;S. Massetti;A. Mura;S. Barabash;G. Cremonese;I. Daglis;E. Angelis;A. M. Lellis;S. Livi;V. Mangano;K. Torkar
水星是一个鲜为人知的行星，因为唯一的天基信息来自水手10号航天器在1974年进行的三次飞越。地面观测也提供了一些有趣的结果，但由于该行星靠近太阳，因此特别难以获得。然而，水星的轨道如此接近太阳，这使得水星在极端环境条件下成为一个特别有趣的主题。在需要解决的一些关键科学问题中，水星的外逸层、它与太阳风的相互作用及其来自行星表面的起源，可以提供有关行星演化的重要线索。事实上，Hermean的外逸层不断地被这些相互作用侵蚀和重新填充，因此将Hermean环境视为一个单一的统一系统-表面-外逸层-磁层更合适。这三个部分确实是紧密相连的。近年来，两次探测铁行星的任务都是NASA信使使命（2004年3月发射）和欧空局基石使命（与日本宇宙航空研究开发机构联合）BepiColombo（将于2012年发射），激发了人们对与之相关的许多未解之谜的新兴趣。并进行了新的模拟研究。本文回顾了与地表-外逸层-磁层系统有关的一些旧的和最新的观测和研究，概述了计划中的天基观测可实现的研究。这篇综述旨在支持这些研究，为未来的数据做准备，并定义特定的仪器。
Mercury is a poorly known planet, since the only space-based information comes from the three fly-bys performed in 1974 by the Mariner 10 spacecraft. Ground-based observations also provided some interesting results, but they are particularly difficult to obtain due to the planet’s proximity to the Sun. Nevertheless, the fact that the planet’s orbit is so close to the Sun makes Mercury a particularly interesting subject for extreme environmental conditions. Among a number of crucial scientific topics to be addressed, Mercury’s exosphere, its interaction with the solar wind and its origin from the surface of the planet, can provide important clues about planetary evolution. In fact, the Hermean exosphere is continuously eroded and refilled by these interactions, so that it would be more proper to consider the Hermean environment as a single, unified system – surface-exosphere-magnetosphere. These three parts are indeed strongly linked to each other. In recent years, the two missions scheduled to explore the iron planet, the NASA MESSENGER mission (launched in March 2004) and the ESA cornerstone mission (jointly with JAXA) BepiColombo (to be launched in 2012), have stimulated new interest in the many unresolved mysteries related to it. New ground-based observations, made possible by new technologies, have been obtained, and new simulation studies have been performed. In this paper some old as well as the very latest observations and studies related to the surface-exosphere-magnetosphere system are reviewed, outlining the investigations achievable by the planned space-based observations. This review intends to support the studies, in preparation of future data, and the definition of specific instrumentation.