Lunar dust motion.

Lunar dust motion.
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月球尘埃运动。

DOI:
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发表时间:
1972
期刊:
影响因子:
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通讯作者:
D. Criswell
D. Criswell
中科院分区:
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文献类型:
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作者:
D. Criswell

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在当地日落后一小时,“勘测者7号”拍摄到了月球西部地平线上沿着明亮的辉光。这种地平线辉光一定是由于太阳光被一群尘埃颗粒向前散射而产生的,这些尘埃颗粒在当地地平线上方3到30厘米处延伸,柱密度为5粒/平方厘米。可观察到的辉光是由半径约为6微米的颗粒引起的。这意味着年搅动率为0.001克/平方厘米。本文提出了一个关于月球表面微粒静电悬浮产生尘埃云的模型。
Surveyor 7 photographed a bright glow along the western lunar horizon one hour after local sunset. This horizon glow must result from the forward scattering of sunlight by a swarm of dust grains extending 3 to 30 centimeters above the local horizon with a column density of 5 grains/sq cm. The observable glow is evoked by grains approximately 6 microns in radius. An annual churning rate of .001 g/sq cm is implied. A model is presented for dust cloud production in terms of electrostatic levitation of lunar surface fines.