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Anisotropic diffusion of meteor trails due to the geomagnetic field over King Sejong Station (62.2°S, 58.8°W), Antarctica

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Title
Anisotropic diffusion of meteor trails due to the geomagnetic field over King Sejong Station (62.2°S, 58.8°W), Antarctica
Other Titles
남극세종과학기지 상공에서의 지자기에 의한 유성흔의 비등방 확산
Authors
Choi, Jong-Min
Yang, Tae-Yong
Jee, Geonhwa
Kim, Jeong-Han
Lee, Changsup
Kim, Yong Ha
Kwak, Young-Sil
Subject
Astronomy & Astrophysics
Keywords
Anisotropic diffusion; Antarctica; Meteor trail
Issue Date
2018-05-07
Citation
최종민, et al. 2018. "Anisotropic diffusion of meteor trails due to the geomagnetic field over King Sejong Station (62.2°S, 58.8°W), Antarctica". ASTROPHYSICS AND SPACE SCIENCE, 363(6): 111-NaN.
Abstract
We analyzed meteor decay times measured by a VHF meteor radar at King Sejong Station, Antarctica (62.22°S, 58.78°W) to study diffusion processes of the me- teor trails above the altitude of ∼93 km. Above this altitude, where the atmospheric density is so dilute that collisions be- tween trail ions and ambient molecules become rare, diffu- sion of a meteor trail can be greatly affected by the geomag- netic field, resulting in anisotropic distribution of measured decay times over the azimuthal and elevation angles. Our preliminary analysis confirm the anisotropic nature of me- teor decay times due to geomagnetic field.
URI
http://repository.kopri.re.kr/handle/201206/9461
DOI
http://dx.doi.org/10.1007/s10509-018-3333-y
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