Academic Journal
Influence of Magnetic Fields on Precipitating Solar Wind Hydrogen at Mars
| العنوان: | Influence of Magnetic Fields on Precipitating Solar Wind Hydrogen at Mars |
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| المؤلفون: | Sarah Henderson, Jasper Halekas, Zach Girazian, Jared Espley, Meredith Elrod |
| المصدر: | Geophysical Research Letters, Vol 49, Iss 12, Pp n/a-n/a (2022) |
| بيانات النشر: | Wiley, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Geophysics. Cosmic physics |
| مصطلحات موضوعية: | penetrating protons, solar wind hydrogen, MAVEN, Geophysics. Cosmic physics, QC801-809 |
| الوصف: | Abstract Solar wind protons can interact directly with the hydrogen corona of Mars through charge exchange, resulting in energetic neutral atoms (ENAs) able to penetrate deep into the upper atmosphere of Mars. ENAs can undergo multiple charge changing interactions, leading to an observable beam of penetrating protons in the upper atmosphere. We seek to characterize the behavior of these protons in the presence of magnetic fields using data collected by the Mars Atmosphere and Volatile EvolutioN spacecraft. We find that backscattered penetrating proton flux is enhanced in regions where the magnetic field strength is greater than 200 nT. We also find a strong correlation at CO2 column densities less than 5.5 × 1014 cm−2 between magnetic field strength and the observed backscattered and downward flux. We do not see significant changes in penetrating proton flux with magnetic field strengths on the order of 10 nT. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1944-8007 0094-8276 |
| Relation: | https://doaj.org/toc/0094-8276; https://doaj.org/toc/1944-8007 |
| DOI: | 10.1029/2022GL099114 |
| URL الوصول: | https://doaj.org/article/8df79b50e5934feaa873518499539f20 |
| رقم الانضمام: | edsdoj.8df79b50e5934feaa873518499539f20 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19448007 00948276 |
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| DOI: | 10.1029/2022GL099114 |