GSTDTAP  > 气候变化
DOI10.1029/2018GL077842
The September 2017 SEP Event in Context With the Current Solar Cycle: Mars Express ASPERA-3/IMA and MAVEN/SEP Observations
Ramstad, Robin1,2; Holmstrom, Mats1; Futaana, Yoshifumi1; Lee, Christina O.3; Rahmati, Ali3; Dunn, Patrick3; Lillis, Robert J.3; Larson, Davin3
2018-08-16
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
EISSN1944-8007
出版年2018
卷号45期号:15页码:7306-7311
文章类型Article
语种英语
国家Sweden; USA
英文摘要

We use Mars Atmosphere and Volatile Evolution/Solar Energetic Particle (MAVEN/SEP) data to estimate the ranges of particle energies that generate background noise in the Analyzer of Space Plasmas and Energetic Atoms-3/Ion Mass Analyzer (IMA) instrument on Mars Express. The particles that generate IMA background counts are estimated to be electrons with energies >1 MeV and protons >20 MeV. The September 2017 event at Mars resulted in the strongest flux of energetic particles measured by MAVEN/SEP. We correspondingly use the IMA background data to compare this event with the rest of the last solar cycle and back to 2004, finding the event to be the fourth strongest solar energetic particle event detected by Mars Express.


Plain Language Summary The September 2017 event produced the strongest radiation flux measured at Mars by the Mars Atmosphere and Volatile Evolution (MAVEN) mission since late 2014. Such events may not only have effects on the evolution of the atmosphere but also pose a problem for equipment and future human presence. In order to understand how unusual events such as the September 2017 event are at Mars, we use MAVEN data to estimate the sensitivity to radiation of instruments on the older Mars Express (2004-) spacecraft. We find the September 2017 event to be the fourth strongest radiation event observed by Mars Express.


英文关键词Mars SEP MeV ASPERA MAVEN space weather
领域气候变化
收录类别SCI-E
WOS记录号WOS:000443129500008
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/26032
专题气候变化
作者单位1.Swedish Inst Space Phys, Kiruna, Sweden;
2.Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA;
3.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA
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Ramstad, Robin,Holmstrom, Mats,Futaana, Yoshifumi,et al. The September 2017 SEP Event in Context With the Current Solar Cycle: Mars Express ASPERA-3/IMA and MAVEN/SEP Observations[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(15):7306-7311.
APA Ramstad, Robin.,Holmstrom, Mats.,Futaana, Yoshifumi.,Lee, Christina O..,Rahmati, Ali.,...&Larson, Davin.(2018).The September 2017 SEP Event in Context With the Current Solar Cycle: Mars Express ASPERA-3/IMA and MAVEN/SEP Observations.GEOPHYSICAL RESEARCH LETTERS,45(15),7306-7311.
MLA Ramstad, Robin,et al."The September 2017 SEP Event in Context With the Current Solar Cycle: Mars Express ASPERA-3/IMA and MAVEN/SEP Observations".GEOPHYSICAL RESEARCH LETTERS 45.15(2018):7306-7311.
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