The MAVEN Solar Wind Electron Analyzer
@article{Mitchell2016TheMS, title={The MAVEN Solar Wind Electron Analyzer}, author={David L. Mitchell and Christian Xavier Mazelle and J. A. Sauvaud and J. J. Thocaven and J-N. Rouzaud and Alexander O. Fedorov and P. Rouger and Dominique Toublanc and Ellen R. Taylor and Dorothy A. Gordon and Miles Robinson and Sue Heavner and Paul Turin and Millan Fernando Diaz-Aguado and David W. Curtis and Robert P. Lin and Bruce M. Jakosky}, journal={Space Science Reviews}, year={2016}, volume={200}, pages={495-528} }
The MAVEN Solar Wind Electron Analyzer (SWEA) is a symmetric hemispheric electrostatic analyzer with deflectors that is designed to measure the energy and angular distributions of 3-4600-eV electrons in the Mars environment. This energy range is important for impact ionization of planetary atmospheric species, and encompasses the solar wind core and halo populations, shock-energized electrons, auroral electrons, and ionospheric primary photoelectrons. The instrument is mounted at the end of a 1…
192 Citations
The Solar Wind Ion Analyzer for MAVEN
- Physics
- 2015
The Solar Wind Ion Analyzer (SWIA) on the MAVEN mission will measure the solar wind ion flows around Mars, both in the upstream solar wind and in the magneto-sheath and tail regions inside the bow…
Properties of Electron Distributions in the Martian Space Environment
- PhysicsJournal of Geophysical Research: Space Physics
- 2021
Electron and magnetic field measurements from the Mars atmosphere and volatile environment (MAVEN) mission are utilized to study the interaction between Mars and the solar wind. Instruments like the…
Energy dependent response of the dayside Martian ionospheric electrons to solar forcing
- PhysicsIcarus
- 2022
Ionizing Electrons on the Martian Nightside: Structure and Variability
- Physics
- 2018
The precipitation of suprathermal electrons is the dominant external source of energy deposition and ionization in the Martian nightside upper atmosphere and ionosphere. We investigate the spatial…
Martian electron foreshock from MAVEN observations
- Physics
- 2017
Flux enhancements of energetic electrons are always observed when the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft is magnetically connected to the shock. The observations indicate that…
Spectral Analysis of Accelerated Electron Populations at Mars
- PhysicsJournal of Geophysical Research: Space Physics
- 2019
Accelerated electron populations observed in the nightside ionosphere of Mars are investigated by utilizing measurements obtained by the Solar Wind Electron Analyzer aboard the MAVEN spacecraft. The…
Electron energetics in the Martian dayside ionosphere: Model comparisons with MAVEN data
- Physics
- 2016
This paper presents a study of the energetics of the dayside ionosphere of Mars using models and data from several instruments on board the Mars Atmosphere and Volatile EvolutioN spacecraft. In…
Martian low‐altitude magnetic topology deduced from MAVEN/SWEA observations
- Physics
- 2016
The Mars Atmosphere and Volatile Evolution mission has obtained comprehensive particle and magnetic field measurements. The Solar Wind Electron Analyzer provides electron energy‐pitch angle…
Bidirectional electron conic observations for photoelectrons in the Martian ionosphere
- PhysicsEarth and Planetary Physics
- 2020
Electron pitch angle distributions similar to bidirectional electron conics (BECs) have been reported at Mars in previous studies based on analyses of Mars Global Surveyor measurements. BEC…
Cross‐Terminator Variations of the Photoelectron Energy Distribution in the Martian Ionosphere
- PhysicsJournal of Geophysical Research: Planets
- 2022
Photoelectrons are produced on the dayside of Mars via solar Extreme Ultraviolet (EUV) and X‐ray ionization and are also frequently observed on the nightside as a result of field‐aligned transport.…
References
SHOWING 1-10 OF 89 REFERENCES
The Solar Wind Ion Analyzer for MAVEN
- Physics
- 2015
The Solar Wind Ion Analyzer (SWIA) on the MAVEN mission will measure the solar wind ion flows around Mars, both in the upstream solar wind and in the magneto-sheath and tail regions inside the bow…
The IMPACT Solar Wind Electron Analyzer (SWEA)
- Physics
- 2008
Abstract
SWEA, the solar wind electron analyzers that are part of the IMPACT in situ investigation for the STEREO mission, are described. They are identical on each of the two spacecraft. Both are…
Probing Mars' crustal magnetic field and ionosphere with the MGS Electron Reflectometer
- Physics, Geology
- 2001
The Electron Reflectometer (ER) on board Mars Global Surveyor measures the energy and angular distributions of solar wind electrons and ionospheric photoelectrons. These data can be used in…
The IMPACT Solar Wind Electron Analyzer (SWEA): Reconstruction of the SWEA Transmission Function by Numerical Simulation and Data Analysis
- Physics
- 2011
The IMPACT SWEA instruments on board the twin STEREO spacecraft detect the solar wind electrons with energies between 1 and 2000 eV. The instruments provide 3-dimensional velocity distributions,…
Three-dimensional structure of the Martian nightside ionosphere: Predicted rates of impact ionization from Mars Global Surveyor magnetometer and electron reflectometer measurements of precipitating electrons
- Physics
- 2011
[1] The nightside ionosphere of Mars is known to be highly variable: electron densities are below detection thresholds in certain regions and are almost comparable to the photoionization-produced…
Oxygen auger electrons observed in Mars' ionosphere
- Physics
- 2000
Over the course of 290 orbits, the Electron Reflectometer onboard Mars Global Surveyor consistently observed a plasma boundary at a median altitude of 380 km, where electron fluxes at energies…
Nightside ionosphere of Mars: Modeling the effects of crustal magnetic fields and electron pitch angle distributions on electron impact ionization
- Physics
- 2009
[1] The night side ionosphere of Mars is known to be highly variable: essentially nonexistent in certain geographic locations, while occasionally nearly as strong as the photoionization-produced…
On the origin of aurorae on Mars
- Physics
- 2006
We report observations by Mars Global Surveyor (MGS) of thousands of peaked electron energy spectra similar to terrestrial auroral electrons. They are observed on the Martian nightside, near strong…