Physical properties and distribution of sporadic meteors

零星流星的物理特性和分布

• 批准号: 312352-2008
• 负责人: CampbellBrown, Margaret
• 金额: $ 1.72万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=481223
• 关键词: Physical; properties; distribution; sporadic; meteors

Meteors have been admired for centuries for their sometimes spectacular visual displays in the sky. In spite of this, it is only in the last two centuries that we have understood what causes the streaks of light; meteors are the collision of the Earth's atmosphere with pieces of comets and asteroids. We want to know what the meteoroids which produce meteors are made of, so that we can learn about the comet or asteroid which produced them was like. We also need to know how many of them collide with the Earth each day, so that engineers know how much shielding to put on satellites and other spacecraft.

几个世纪以来，流星因其在天空中有时壮观的视觉表现而受到赞赏。尽管如此，直到最近两个世纪，我们才了解了是什么导致了这些条纹;流星是地球大气层与彗星和小行星碎片的碰撞。我们想知道产生流星的流星体是由什么组成的，这样我们就可以了解产生它们的彗星或小行星是什么样的。我们还需要知道每天有多少颗行星与地球相撞，这样工程师们就可以知道应该在卫星和其他航天器上安装多少防护罩。