The Incidence of Meteor Particles Upon the Earth
The Incidence of Meteor Particles Upon the Earth
复制标题
流星粒子撞击地球
DOI：
10.1071/ph570397
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发表时间：
1957
期刊：
影响因子：
--
通讯作者：
A. Weiss
中科院分区：
文献类型：
--
作者：
A. Weiss
在阿德莱德用27 Mcls C.W.设备测量的流星雨和零星流星雨的无线电回波率，应用于计算MR < + 7.5范围内限制亮度以上的流星的入射通量。在对观测材料进行临界评估后，假设电离概率与速度密切相关，并计算出超过规定极限流星粒子质量的流星通量和流星粒子的空间密度。这些通量和密度与目视流星率的独立评估相当吻合。在粒子质量范围内，每天落在整个地球上的大气物质的数量是多少？1到10？零星流星雨和一些阵雨，估计也有4克。
Radio echo rates for both shower and sporadic meteors, measured at Adelaide with the 27 Mcls C.W. equipment, are applied to the calculation of the incident flux of meteors above limiting brightnesses in the range MR < + 7·5. On the hypothesis of a strongly velocity-dependent ionizing probability, reached after a critical evaluation of the observational material, the meteor flux above prescribed limiting meteor particle masses, and the space densities of meteor particles, are also calculated. These fluxes and densities agree reasonably well with independent evaluations from visual meteor rates. The amount of meteoric matter falling on the whole Earth per day within particle mass limits 10?1 to 10?4 g, for sporadic meteors and some showers, is also estimated.