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arXiv 1706.01413astro-ph.EP
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用地球上的流星探测器测量行星的流星体环境

Measuring the meteoroid environments of the planets with meteor detectors on Earth

Paul Wiegert, Peter Brown, Petr Pokorny, Karina Lenartowicz, Zbyszek Krzeminski

摘要:

我们描述了如何在地球上记录的流星可以被用来部分重建流星体环境的行星,如果一个大的样本(即数百万的轨道在最低限度)。这一过程包括从地球上的样本中挑选那些在到达地球之前经过行星轨道附近的流星,从而携带有关行星流星体环境的信息。事实上,这个过程可以扩展到太阳系的任何位置,尽管某些空间区域比其他区域更好地采样。从这样的重建与加拿大流星轨道雷达(CMOR)的数据进行,我们发现,火星的顶点,helion,antihelion和环形零星的来源,就像地球一样。这种重建虽然是部分的,但有可能提供关于行星流星体环境的大量细节,并允许在不进行现场取样的情况下对模型流星体群进行地面实况调查。

英文摘要:

We describe how meteors recorded at the Earth can be used to partly reconstruct the meteoroid environments of the planets if a large sample (i.e. millions of orbits at a minimum) is available. The process involves selecting from the Earth-based sample those meteors which passed near a planet's orbit prior to arriving at the Earth, and so carry information about the planetary meteoroid environment. Indeed this process can be extended to any location in the Solar System, though some regions of space are better sampled than others. From such a reconstruction performed with data from the Canadian Meteor Orbit Radar (CMOR), we reveal that Mars has apex, helion, anti-helion and toroidal sporadic sources, much as Earth does. Such reconstructions, albeit partial, have the potential to provide a wealth of detail about planetary meteoroid environments, and to allow for the ground-truthing of model meteoroid populations without in situ sampling.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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