The Impact of Crustal Magnetic Fields on the Thermal Structure of the Martian Upper Atmosphere

doi:10.3847/2041-8213/aaa89a

CORC > 国家天文台 > 中国科学院国家天文台

	The Impact of Crustal Magnetic Fields on the Thermal Structure of the Martian Upper Atmosphere
	Cui, J.1,2,3; Yelle, R. V.4; Zhao, L. -L.5; Stone, S.4; Jiang, F. -Y.3; Cao, Y. -T.3; Yao, M. -J.1; Koskinen, T. T.5; Wei, Y.6
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2018-02-01
卷号	853 期号:2 页码:6
关键词	planets and satellites: individual (Mars)
ISSN号	2041-8205
DOI	10.3847/2041-8213/aaa89a
英文摘要	Using the Mars Atmosphere and Volatile Evolution Neutral Gas and Ion Mass Spectrometer data, we investigate the possible impact of crustal magnetic fields on the thermal structure of the Martian upper atmosphere. Our analysis reveals a clear enhancement in temperature over regions with strong crustal magnetic fields during two deep dip campaigns covering the periods of April 17-22 and September 2-8, both in 2015. Several controlling factors, such as solar EUV irradiance, relative atomic O abundance, and non-migrating tides, do not help to explain the observed temperature enhancement, and a magnetically driven scenario is favored. We evaluate the roles of several heating mechanisms that are likely modulated by the presence of crustal magnetic fields, including Joule heating, ion chemical heating, as well as electron impact heating via either precipitating solar wind electrons or locally produced photoelectrons. The respective heating rates of these mechanisms are substantially lower than the solar EUV heating rate, implying that none of them is able to interpret the observations.
资助项目	National Science Foundation of China (NSFC)[41525015] ; National Science Foundation of China (NSFC)[41774186] ; National Science Foundation of China (NSFC)[41504133] ; Science and Technology Development Fund of Macau SAR (FDCT)[039/2013/A2] ; Science and Technology Development Fund of Macau SAR (FDCT)[082/2015/A3]
WOS关键词	ENERGY DEPOSITION ; MARS ; MAVEN ; THERMOSPHERE ; IUVS
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000424053800007
资助机构	National Science Foundation of China (NSFC) ; Science and Technology Development Fund of Macau SAR (FDCT) ; National Science Foundation of China (NSFC) ; Science and Technology Development Fund of Macau SAR (FDCT) ; National Science Foundation of China (NSFC) ; Science and Technology Development Fund of Macau SAR (FDCT) ; National Science Foundation of China (NSFC) ; Science and Technology Development Fund of Macau SAR (FDCT)
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/35739]
专题	中国科学院国家天文台
通讯作者	Cui, J.
作者单位	1.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai 519082, Guangdong, Peoples R China 2.Macau Univ Sci & Technol, Lunar & Planetary Sci Lab, Macau, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Key Lab Lunar & Deep Space Explorat, Beijing 100012, Peoples R China 4.Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA 5.Univ Chinese Acad Sci, Sch Earth Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Cui, J.,Yelle, R. V.,Zhao, L. -L.,et al. The Impact of Crustal Magnetic Fields on the Thermal Structure of the Martian Upper Atmosphere[J]. ASTROPHYSICAL JOURNAL LETTERS,2018,853(2):6.
APA	Cui, J..,Yelle, R. V..,Zhao, L. -L..,Stone, S..,Jiang, F. -Y..,...&Wei, Y..(2018).The Impact of Crustal Magnetic Fields on the Thermal Structure of the Martian Upper Atmosphere.ASTROPHYSICAL JOURNAL LETTERS,853(2),6.
MLA	Cui, J.,et al."The Impact of Crustal Magnetic Fields on the Thermal Structure of the Martian Upper Atmosphere".ASTROPHYSICAL JOURNAL LETTERS 853.2(2018):6.