Publications (17)
Observations of Energized Electrons in the Martian Magnetosheath
K. Horaites, L. Andersson, S. J. Schwartz +5
This observational study demonstrates that the magnitude and location of energization of electrons in the Martian magnetosheath is more complex than previous studies suggest. Elect…
The evolution of compressible solar wind turbulence in the inner heliosphere: PSP, THEMIS and MAVEN observations
N. Andrés, F. Sahraoui, L. Z. Hadid +5
The first computation of the compressible energy transfer rate from 0.2 AU up to 1.7 AU is obtained using PSP, THEMIS and MAVEN observations. The compressible energy…
The effects of crustal magnetic fields and solar EUV flux on ionopause formation at Mars
F. Chu, Z. Girazian, D. A. Gurnett +5
We study the ionopause of Mars using a database of 6,893 ionopause detections obtained over 11 years by the MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) expe…
Parker Solar Probe evidence for the absence of whistlers close to the Sun to scatter strahl and regulate heat flux
C. Cattell, A. Breneman, J. Dombeck +14
Using the Parker Solar Probe FIELDS bandpass filter data and SWEAP electron data from Encounters 1 through 9, we show statistical properties of narrowband whistlers from ~16 Rs to…
Variations in the Ionospheric Peak Altitude at Mars in Response to Dust Storms: 13 Years of Observations from the Mars Express Radar Sounder
Z. Girazian, Z. Luppen, D. D. Morgan +7
Previous observations have shown that, during Martian dust storms, the peak of the ionosphere rises in altitude. Observational studies of this type, however, have been extremely li…
The magnetic structure of the subsolar MPB current layer from MAVEN observations: Implications for the Hall electric force
G. Boscoboinik, C. Bertucci, D. Gomez +7
We report on the local structure of the Martian subsolar Magnetic Pileup Boundary (MPB) from minimum variance analysis of the magnetic field measured by the Mars Atmosphere and Vol…
Response of the Martian Ionosphere to Solar Activity including SEPs and ICMEs in a two week period starting on 25 February 2015
F. Duru, D. A. Gurnett, D. D. Morgan +15
In a two-week period between February and March of 2015, a series of interplanetary coronal mass ejections (ICMEs) and (solar energetic particles) SEPs made contact with Mars. The…
The Dayside Ionopause of Mars: Solar Wind Interaction, Pressure Balance, and Comparisons with Venus
F. Chu, Z. Girazian, F. Duru +5
Due to the lower ionospheric thermal pressure and existence of the crustal magnetism at Mars, the Martian ionopause is expected to behave differently from the ionopause at Venus. W…
The Structure of Martian Magnetosphere at the Dayside Terminator Region as Observed on MAVEN Spacecraft
O. L. Vaisberg, V. N. Ermakov, S. D. Shuvalov +5
We analyzed 44 passes of the MAVEN spacecraft through the magnetosphere, arranged by the angle between electric field vector and the projection of spacecraft position radius vector…
Narrowband oblique whistler-mode waves: Comparing properties observed by Parker Solar Probe at <0.2 AU and STEREO at 1 AU
C. Cattell, B. Short, A. Breneman +15
AIM: Large amplitude narrowband obliquely propagating whistler-mode waves at frequencies of ~0.2 fce (electron cyclotron frequency) are commonly observed at 1 AU, and are most cons…
A Virtual Solar Wind Monitor at Mars with Uncertainty Quantification using Gaussian Processes
A. R. Azari, E. Abrahams, F. Sapienza +9
Single spacecraft missions do not measure the pristine solar wind continuously because of the spacecrafts' orbital trajectory. The infrequent spatiotemporal cadence of measurement…
Core Electron Heating By Triggered And Ordinary Ion Acoustic Waves In The Solar Wind
F. S. Mozer, S. D. Bale, C. A. Cattell +4
Orbits six through nine of the Parker Solar Probe have been studied to show that solar wind core electrons emerged from 15 solar radii with temperatures that were constant to withi…
A fast bow shock location predictor-estimator from 2D and 3D analytical models: Application to Mars and the MAVEN mission
C. Simon Wedlund, M. Volwerk, A. Beth +5
We present fast algorithms to automatically estimate the statistical position of the bow shock from spacecraft data, using existing analytical two-dimensional (2D) and three-dimens…
Kinetic-scale current sheets in near-Sun solar wind: properties, scale-dependent features and reconnection onset
A. Lotekar, I. Y. Vasko, T. Phan +6
We present statistical analysis of 11,200 proton kinetic-scale current sheets (CS) observed by Parker Solar Probe during 10 days around the first perihelion. The CS thickness …
The Effects of Solar Wind Dynamic Pressure on the Structure of the Topside Ionosphere of Mars
Z. Girazian, J. Halekas, D. D. Morgan +3
We use Mars Atmosphere and Volatile EvolutioN observations of the upstream solar wind, and Mars Express observations of ionospheric electron densities and magnetic fields, to study…
Resonance of low-frequency electromagnetic and ion-sound modes in the solar wind
I. Y. Vasko, F. S. Mozer, T. Bowen +6
Parker Solar Probe measurements have recently shown that coherent fast magnetosonic and Alfvén ion-cyclotron waves are abundant in the solar wind and can be accompanied by higher-…
Parker Solar Probe evidence for scattering of electrons in the young solar wind by narrowband whistler-mode waves
C. Cattell, A. Breneman, J. Dombeck +14
Observations of plasma waves by the Fields Suite and of electrons by the Solar Wind Electrons Alphas and Protons Investigation (SWEAP) on Parker Solar Probe provide strong evidence…