论文部分内容阅读
Based on the WIND observational data for the plasma waves from thermal noise receptor (TNR) working on the frequency 4―256 kHz and the solar wind and the magnetic fields, we analyze the plasma wave activities in the 60 magnetic cloud’s boundary layers (BLs) and find that there are often various plasma wave activities in the BLs, which are different from those in the adjacent solar wind (SW) and the magnetic clouds (MC). The basic characteris-tics are that: (1) the enhancement of the Langmuir wave near the electronic plasma frequency (fpe) is a dominant wave ac-tivity, which occupies 75% investigated samples; (2) the events enhanced both in the langmuir and ion acustic (f < fpe) waves are about 60% of investigated samples; (3) broadband, continuous enhancement events in the plasma wave activities were observed in the whole frequency band of TNR, and about 30% of the 60 samples, however, were not observed in the SW and the MC investigated events; (4) although the ratio of the temperatures between the electon and proton, Te/Tp≤1, the ion caustic wave enhancement activities are still often observed in the BLs, which makes it difficult to ex- plain them by the traditional plasma theory. New results reported in this paper further show that the magnetic cloud’s BL is an important dynamic structure, which could provide useful diagnosis for understanding the cloud’s BL physics and could expand a space developing space plasma wave theory.
Based on the WIND observational data for the plasma waves from thermal noise receptor (TNR) working on the frequency 4-256 kHz and the solar wind and the magnetic fields, we analyze the plasma wave activities in the 60 magnetic cloud’s boundary layers (BLs) and find that there are often various plasma wave activities in the BLs, which are different from those in the adjacent solar wind (SW) and the magnetic clouds (MC). The basic characteris-tics are that: (1) the enhancement of the Langmuir waves near the electronic plasma frequency (fpe) is a dominant wave ac-tivity, which occupies 75% investigated samples; (2) the events enhanced both in the langmuir and ion acustic (f
其他文献
Based on Atmosphere-Vegetation Interaction Model (AVIM), the magnitude and spatial distribution of terrestrial net primary productivity (NPP) in China is simu-l
胡锦涛总书记2008年在全国组织工作会议上指出,选人用人要坚持德才兼备、以德为先.在党的十七届中央纪委三次全会上,他又一次强调,我们党的干部标准是德才兼备、以德为先,德
In late May and early June, 2002, a field investigation was conducted along the Three-Gorges valley of the upper Yangtze catchment by ADP (Acoustic Doppler Prof
Importing the interface element which links the frozen soil base with concrete piles and considering the couplings of stress field, temperature field and moistu
In the eastern Nanling Range there exists the early Yanshanian syenite-granite assemblage. A representative example is the Pitou-Tabei complex composed of the T
Dislocation structure of the crust-mantle boundary and low-velocity body within the crust beneath th
From April of 2001 to March of 2002, a passive seismic array experiment was carried out in the Dabie Shan and its adjacent region. In this experiment, totally 3
监狱是社会公共组织,必须通过组织管理使自己的组织体系得以建立健全,并通过组织管理来确保自己的生存、运转和发展。而保持组织管理的稳定性和持续性,提高组织管理的公信力,
辩诉交易制度产生于美国,至今已经有一百多年的历史,已由当初的秘密状态转变到由明文法律加以确定,由最初的随意性较大发展到比较规范的成熟而且具有可操作性的司法制度,并在
~(187)Os/~(188)Os ratios in all sub-layers of the Co-rich ferromanganese crust MP5D17 from Line Seamount in Central Pacific have been systematically determined.
国家实施经济体制改革发展使得当前的社会主义市场经济面临着诸多问题,建立一个和谐稳定的法律机制成为了当前急需解决的问题。经济法律长期以来都是经济发展的重要保证,在经