Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL075367 |
MAVEN Observations of the Effects of Crustal Magnetic Fields on Electron Density and Temperature in the Martian Dayside Ionosphere | |
Flynn, Casey L.1; Vogt, Marissa F.2; Withers, Paul1,2; Andersson, Laila3; England, Scott4; Liu, Guiping5 | |
2017-11-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:21 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Mars lacks a global magnetic field but possesses concentrated regions of crustal magnetic field that influence the planet's interaction with the solar wind and the structure of the Martian ionosphere. In this study we survey 17 months of MAVEN Langmuir Probe and Waves dayside electron density and temperature measurements to study how these quantities are affected in regions with strong crustal magnetic fields. Above 200 km altitude, we find that regions of strong crustal magnetic fields feature cooler electron temperatures and enhanced electron densities compared to regions with little or no crustal magnetic field. Neutral densities and temperatures are not significantly affected. Closed field lines on which electrons can be trapped are more prevalent in strong crustal field regions than elsewhere. Trapped on closed field lines, electrons are protected against loss processes involving the solar wind. This would lead to longer plasma lifetimes, higher densities, and lower temperatures. |
英文关键词 | Mars ionosphere |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418572900005 |
WOS关键词 | MARS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29135 |
专题 | 气候变化 |
作者单位 | 1.Boston Univ, Dept Astron, 725 Commonwealth Ave, Boston, MA 02215 USA; 2.Boston Univ, Ctr Space Phys, Boston, MA 02215 USA; 3.Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA; 4.Virginia Tech, Dept Aerosp & Ocean Engn, Blacksburg, VA USA; 5.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA |
推荐引用方式 GB/T 7714 | Flynn, Casey L.,Vogt, Marissa F.,Withers, Paul,et al. MAVEN Observations of the Effects of Crustal Magnetic Fields on Electron Density and Temperature in the Martian Dayside Ionosphere[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(21). |
APA | Flynn, Casey L.,Vogt, Marissa F.,Withers, Paul,Andersson, Laila,England, Scott,&Liu, Guiping.(2017).MAVEN Observations of the Effects of Crustal Magnetic Fields on Electron Density and Temperature in the Martian Dayside Ionosphere.GEOPHYSICAL RESEARCH LETTERS,44(21). |
MLA | Flynn, Casey L.,et al."MAVEN Observations of the Effects of Crustal Magnetic Fields on Electron Density and Temperature in the Martian Dayside Ionosphere".GEOPHYSICAL RESEARCH LETTERS 44.21(2017). |
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