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首页> 外文会议>7th Spacecraft Charging Technology Conference 2001: a Spacecraft Charging Odyssey, Apr 23-27, 2001, Noordwijk, the Netherlands >CHARGING EFFECTS ON COSMIC DUST
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CHARGING EFFECTS ON COSMIC DUST

机译：宇宙尘埃的充电效果

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摘要

We discuss the surface charging of cosmic dust in the interplanetary medium. The charging of particles depends on their size and material composition as well as on the surrounding plasma and radiation. The time scales for dust particles to attain their equilibrium surface charge are small compared to typical lifetimes of dust in the solar system and small particles are sufficiently highly charged so that their motion is influenced by Lorentz force. The discussed effects, however are not accessible to remote astronomical observations, but rather to local in situ measurements. Although we see a severe influence of the charging on the motion of dust particles, the conditions of a "dusty plasma" do not apply.
机译：我们讨论了行星际介质中宇宙尘埃的表面电荷。粒子的电荷取决于粒子的大小和材料组成以及周围的等离子体和辐射。尘埃粒子达到其平衡表面电荷的时间尺度与太阳能系统中尘埃的典型寿命相比很小，并且小尘埃带足够高的电荷，因此它们的运动会受到洛伦兹力的影响。但是，远距离天文观测无法获得所讨论的影响，而是局部原位测量无法获取。尽管我们看到带电对粉尘颗粒运动的严重影响，但“尘土等离子体”的条件并不适用。

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