Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2022GL097942 |
Dust rotation and swirl morphology in lunar magnetic anomalies | |
Michael Gerard; Jan Deca; Mihá; ly Horá; nyi | |
2022-01-28 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2022 |
英文摘要 | The scattering of light off the bright regions of lunar swirls suggests a relatively higher fraction of fine-grained dust compared to dust with similar optical maturity values found elsewhere on the lunar surface when assuming an isotropically oriented dust distribution, without preferred grain orientation. Here we propose a mechanism by which the ferromagnetic lunar fines, lofted by electrostatic effects or by meteoroid impacts, may rotate in a lunar magnetic anomaly and, upon landing, produce patches of organized alignments, generating anisotropic surface structures. We simulate these rotations for Reiner Gamma and provide a proof of concept for such a dust rotation model. While the magnetic forces remain negligibly small to influence the trajectories of the lofted particles, the magnetic torques have a significant effect on the rotation of magnetized dust, and can generate an organized landing pattern for elongated lunar fines, which offers a possible explanation for the lunar albedo patterns. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/345972 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Michael Gerard,Jan Deca,Mihá,et al. Dust rotation and swirl morphology in lunar magnetic anomalies[J]. Geophysical Research Letters,2022. |
APA | Michael Gerard,Jan Deca,Mihá,ly Horá,&nyi.(2022).Dust rotation and swirl morphology in lunar magnetic anomalies.Geophysical Research Letters. |
MLA | Michael Gerard,et al."Dust rotation and swirl morphology in lunar magnetic anomalies".Geophysical Research Letters (2022). |
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