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Reduced Atmospheric Ion Escape Above Martian Crustal Magnetic Fields

文献类型：期刊论文

作者Fan, Kai2,3,4; Fraenz, Markus4; Wei, Yong2,3; Han, Qianqian2,3; Dubinin, Eduard4; Cui, Jun1,7; Chai, Lihui2; Rong, Zhaojin2; Zhong, Jun2; Wan, Weixing2
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2019-11-16
卷号46期号:21页码:11764-11772
ISSN号0094-8276
关键词Mars Martian crustal fields Ion escape ionosphere atmospheric evolution
DOI10.1029/2019GL084729
英文摘要Martian crustal fields were considered as too weak to have a distinctive effect on global escape rates of Martian heavy ions. However, new observations by the Mars Atmosphere and Volatile Evolution mission reveal a more precise result and show a notably lower atmospheric ion escape region above the area of the strongest crustal fields. A comparison between the fluxes of high and low energy O+ ions suggests that the strongest crustal fields may trap low energy ions and reduce the solar wind pick-up efficiency while high energy ions form a flux depletion above the crustal field. Statistical results indicate a maximum reduction of the global escape flux by nearly 35% when the strongest crustal field region is oriented sunward. This is the first time that the protective effect of the crustal fields on heavy planetary ions has been observed and it might indicate a more effective protection of atmospheres by stronger magnetic fields like at Earth.
WOS关键词MARS GLOBAL SURVEYOR ; OXYGEN IONS ; MAVEN ; IONOSPHERE ; EARTH
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010201] ; National Natural Science Foundation of China[41525016] ; National Natural Science Foundation of China[41525015] ; National Natural Science Foundation of China[41621063] ; National Natural Science Foundation of China[41661164034] ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR)[50QM1703] ; Thousand Young Talents Program of China
WOS研究方向Geology
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000501723000020
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; German Deutsches Zentrum fur Luft-und Raumfahrt (DLR) ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/95883]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Fraenz, Markus
作者单位1.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
4.Max Planck Inst Solar Syst Res, Gottingen, Germany
5.NASA, Goddard Space Flight Ctr, Solar Syst Explorat Div, Planetary Magnetospheres Lab, Greenbelt, MD USA
6.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA
7.Chinese Acad Sci, Key Lab Lunar & Deep Space Explorat, Natl Astron Observ, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Fan, Kai,Fraenz, Markus,Wei, Yong,et al. Reduced Atmospheric Ion Escape Above Martian Crustal Magnetic Fields[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(21):11764-11772.
APA Fan, Kai.,Fraenz, Markus.,Wei, Yong.,Han, Qianqian.,Dubinin, Eduard.,...&Connerney, J. E. P..(2019).Reduced Atmospheric Ion Escape Above Martian Crustal Magnetic Fields.GEOPHYSICAL RESEARCH LETTERS,46(21),11764-11772.
MLA Fan, Kai,et al."Reduced Atmospheric Ion Escape Above Martian Crustal Magnetic Fields".GEOPHYSICAL RESEARCH LETTERS 46.21(2019):11764-11772.

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来源：地质与地球物理研究所

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