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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
2018-02-01
Source PublicationASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
Volume853Issue:2Pages:6
AbstractUsing 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.
Keywordplanets and satellites: individual (Mars)
Funding OrganizationNational 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)
DOI10.3847/2041-8213/aaa89a
WOS KeywordENERGY DEPOSITION ; MARS ; MAVEN ; THERMOSPHERE ; IUVS
Language英语
Funding ProjectNational 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]
Funding OrganizationNational 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)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000424053800007
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/35740
Collection中国科学院国家天文台
Corresponding AuthorCui, J.
Affiliation1.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
Recommended Citation
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.
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