Journal article
Open Magnetic Fields in the Martian Magnetosphere Revealing Dipole-like Intrinsic Magnetic Fields at Mars
Astrophysical journal. Letters, Vol.957(2), L29
11/01/2023
DOI: 10.3847/2041-8213/ad0784
Abstract
Mars’s magnetosphere is hybrid, having contributions from both an induced magnetosphere like Venus and the localized crustal magnetic fields. However, the planetary fields also include large-scale, more global components. In this study, we investigate their role in Mars’s magnetospheric topological responses to the interplanetary magnetic field (IMF) clock angle using observations from the Mars Atmospheric Volatile and EvolutioN mission. We show that the large-scale planetary field has a “dipole-like” influence on the Mars global magnetosphere by examining the open field topology. We find that the “dipole-like” planetary field, as at Earth, results in a more open magnetosphere during southward IMF. The clock angle effects on the twisted magnetotail current sheet are similarly consistent with this analogy. It reinforces the idea that Mars’s magnetosphere and solar wind interaction are more Earth-like than previously thought.
Details
- Title: Subtitle
- Open Magnetic Fields in the Martian Magnetosphere Revealing Dipole-like Intrinsic Magnetic Fields at Mars
- Creators
- Shaosui Xu - University of California, BerkeleyJanet Luhmann - University of California, BerkeleyDavid Mitchell - University of California, BerkeleyTristan Weber - University of Colorado BoulderDavid Brain - University of Colorado BoulderYingjuan Ma - Earth and Space ResearchShannon Curry - University of California, BerkeleyGina DiBraccio - Goddard Space Flight CenterJasper Halekas - University of IowaSuranga Ruhunusiri - Laboratory for Atmospheric and Space PhysicsChristian Mazelle - Université Toulouse III - Paul SabatierRobert Lillis - University of California, BerkeleyBenoit Langlais - Centre National de la Recherche Scientifique
- Resource Type
- Journal article
- Publication Details
- Astrophysical journal. Letters, Vol.957(2), L29
- DOI
- 10.3847/2041-8213/ad0784
- eISSN
- 2041-8213
- Publisher
- IOP Publishing
- Grant note
- DOI: 10.13039/100000104, name: National Aeronautics and Space Administration, award: NNH10CC04C; DOI: 10.13039/100000104, name: National Aeronautics and Space Administration, award: 80NSSC17K0455; DOI: 10.13039/100000104, name: National Aeronautics and Space Administration, award: 80NSSC21K0151; DOI: 10.13039/501100002830, name: Centre National d'Etudes Spatiales, award: unknown
- Language
- English
- Date published
- 11/01/2023
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984507025902771
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