MAVEN Observations of Ionospheric Irregularities at Mars
MAVEN Observations of Ionospheric Irregularities at Mars
复制标题
MAVEN 对火星电离层不规则性的观测
DOI：
--
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
B. Jakosky
中科院分区：
文献类型：
--
作者：
C. Fowler;L. Andersson;S. Shaver;J. Thayer;J. Huba;R. Lillis;M. Usanova;J. Espley;R. Ergun;J. Mcfadden;P. Mahaffy;J. Connerney;M. Benna;M. Elrod;D. Mitchell;C. Mazelle;B. Jakosky
在火星观测到与200公里高度以下的水平磁场有关的电离层不规则现象。等离子体密度调制高达200%，观察到在这样的事件，并出现与磁场中的波动。观测到的波动很可能是多普勒频移，代表15 - 20公里或更短长度尺度的空间结构，火星电离层200公里以下的状况与地球E区同义，在那里电离层不规则性已得到广泛研究。有趣的是，火星上的不规则性似乎是电磁性质的，与地球上不规则性的静电性质相反。目前还不清楚火星上这些不规则现象的主要驱动因素是什么，需要进一步研究来解释火星电离层内的这些重要现象。
Ionospheric irregularities associated with horizontal magnetic fields below 200 km altitude are observed at Mars. Plasma density modulations of up to 200% are observed during such events and appear correlated with fluctuations in the magnetic field. The observed fluctuations are likely Doppler shifted and represent spatial structures at length scales of 15–20 km or less. Conditions in the Martian ionosphere below 200 km are synonymous with the terrestrial E region, where ionospheric irregularities have been extensively studied. Interestingly, the irregularities at Mars appear to be electromagnetic in nature, in contrast to the electrostatic nature of irregularities at Earth. It is currently unclear what the primary drivers of these irregularities at Mars are, and further study is needed to explain these important phenomenon within the Martian ionosphere.
影响因子：
4.8
作者：
Morschhauser, A.;Lesur, V.;Grott, M.
通讯作者：
Grott, M.