Journal article
Space Weather Observations With InSight
Geophysical research letters, Vol.48(22), e2021GL095432
11/28/2021
DOI: 10.1029/2021GL095432
Abstract
Solar activity, in the form of coronal mass ejections and corotating interaction regions, results in changes in the solar wind that propagate out through the solar system and interact with the magnetic field environments of planets. Such phenomena have been observed to affect the magnetic field and plasma around Mars as seen from orbit. However, no surface observations have previously been possible because of the absence of ground-based instrumentation. Here, for the first time, we observe the effects of increased solar activity with the magnetometer on the InSight mission in December 2020. We find several days of increased activity including magnetic field fluctuations at periods of minutes to hours. Although only the flanks of this relatively weak coronal mass ejection hit Mars, the observed effects provide insight into how solar activity alters magnetic fields at the surface.
Details
- Title: Subtitle
- Space Weather Observations With InSight
- Creators
- A. Mittelholz - ETH ZurichC. L. Johnson - University of British ColumbiaM. Fillingim - University of California, BerkeleyS. P. Joy - Planetary Science InstituteJ. Espley - Goddard Space Flight CenterJ. Halekas - University of IowaS. Smrekar - Jet Propulsion LaboratoryW. B. Banerdt - Jet Propulsion Laboratory
- Resource Type
- Journal article
- Publication Details
- Geophysical research letters, Vol.48(22), e2021GL095432
- DOI
- 10.1029/2021GL095432
- ISSN
- 0094-8276
- eISSN
- 1944-8007
- Publisher
- Amer Geophysical Union
- Number of pages
- 11
- Grant note
- InSight Mission Eidgenossische Technische Hochschule Zurich
- Language
- English
- Date published
- 11/28/2021
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984428769102771
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