DISRUPTION OF CHARGED DUST GRAINS IN COMETARY PLASMA ENVIRONMENTS

• 作者: Chen Yao Li Zhongyuan Shi Zhidong
• 来源期刊: 上海天文台年刊
• 关键词: comets - plasma - dust - charging
• 年，卷（期）: 2000,（Z1）
• 页码范围: 182-185
• 页数: 4页
• 语种: 中文

摘要

The equilibrium potential and dust fragmentation criterion of fluffy dust grains in plasma are calculated for comet P/Halley . It is found that the dust grain acquires its largest negative potential and disruptive probability about 50,000km from the comet where the dust mass spectrum measured by the spacecraft took a great change.