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DOI | 10.1029/2018GL077732 |
Effects of a Solar Flare on the Martian Hot O Corona and Photochemical Escape | |
Lee, Yuni1,2; Dong, Chuanfei3,4; Pawlowski, Dave5; Thiemann, Edward6; Tenishev, Valeriy7; Mahaffy, Paul1; Benna, Mehdi1,8; Combi, Michael7; Bougher, Stephen7; Eparvier, Frank6 | |
2018-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:14页码:6814-6822 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We examine for the first time the flare-induced effects on the Martian hot O corona. The rapid ionospheric response to the increase in the soft X-ray flux (similar to 800%) facilitates more hot O production at altitudes below the main ionospheric peak, but almost all of these atoms are thermalized before escape. In response to the increase in the extreme ultraviolet (EUV) flux (similar to 170%), the overall upper ionospheric and thermospheric densities are enhanced, and the peak thermospheric responses are found similar to 1.5 hr later. The photochemical escape rate is predicted to increase by similar to 20% with the increases in the soft X-ray and EUV fluxes but decrease rapidly by similar to 13% about 2.5 hr later before recovering the preflare level. Since escaping hot O atoms are mostly produced at high altitudes where ionization by the EUV flux is the greatest, the main contributor to the 20% increase in escape rate is the enhancement in the EUV flux. |
英文关键词 | Mars upper atmosphere MAVEN mission photochemical escape hot O corona solar flare numerical simulation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442582100008 |
WOS关键词 | UPPER-ATMOSPHERE ; OXYGEN CORONA ; WIND INTERACTION ; MARS ; MODEL ; IONOSPHERE ; MAVEN ; THERMOSPHERE ; EXOSPHERE ; VARIABILITY |
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/26757 |
专题 | 气候变化 |
作者单位 | 1.NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA; 2.Univ Space Res Assoc, GESTAR, Columbia, MD 21046 USA; 3.Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA; 4.Princeton Univ, Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA; 5.Eastern Michigan Univ, Dept Phys & Astron, Ypsilanti, MI 48197 USA; 6.Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA; 7.Univ Michigan, Climate & Space Sci & Engn Dept, Ann Arbor, MI 48109 USA; 8.Univ Maryland, CRESST 2, Baltimore, MD 21201 USA |
推荐引用方式 GB/T 7714 | Lee, Yuni,Dong, Chuanfei,Pawlowski, Dave,et al. Effects of a Solar Flare on the Martian Hot O Corona and Photochemical Escape[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(14):6814-6822. |
APA | Lee, Yuni.,Dong, Chuanfei.,Pawlowski, Dave.,Thiemann, Edward.,Tenishev, Valeriy.,...&Eparvier, Frank.(2018).Effects of a Solar Flare on the Martian Hot O Corona and Photochemical Escape.GEOPHYSICAL RESEARCH LETTERS,45(14),6814-6822. |
MLA | Lee, Yuni,et al."Effects of a Solar Flare on the Martian Hot O Corona and Photochemical Escape".GEOPHYSICAL RESEARCH LETTERS 45.14(2018):6814-6822. |
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