Search Publications
The Influence of Crustal Magnetic Fields on the Martian Bow Shock Location: A Statistical Analysis of MAVEN and Mars Express Observations
Garnier, P.; Génot, V.; Halekas, J. S. +6 more
Previous missions underlined the complex influence of the crustal magnetic fields on the Martian environment, including the plasma boundaries. Their influence on the bow shock is however poorly constrained, with most studies showing North/South differences attributed to the crustal fields, with various conclusions from little to strong variabiliti…
The Wave Telescope Technique
Glassmeier, K. -H.; Narita, Y.; Motschmann, U.
Unambiguous determination of wavevectors (wavelengths and propagation directions) is one of the major challenges of space plasma observations, since conventional wave analysis methods for the single spacecraft data are limited to the time series data analysis and the wave properties are determined as a function of the frequencies in the spacecraft…
Determining the Beaming of Io Decametric Emissions: A Remote Diagnostic to Probe the Io-Jupiter Interaction
Kurth, W. S.; Cecconi, B.; Lamy, L. +8 more
We investigate the beaming of 11 Io-Jupiter decametric (Io-DAM) emissions observed by Juno/Waves, the Nançay Decameter Array, and NenuFAR. Using an up-to-date magnetic field model and three methods to position the active Io Flux Tube (IFT), we accurately locate the radiosources and determine their emission angle θ from the local magnetic field vec…
Radial and Local Time Variations in the Thickness of Jupiter's Magnetospheric Current Sheet
Hospodarsky, G. B.; Khurana, K. K.; Paranicas, C. P. +1 more
The magnetic field observations from the Galileo, Ulysses, Voyager 1 and 2, and Pioneer 10 and 11 spacecraft are analyzed to understand the structures and thickness of the Jovian magnetospheric current sheet. Using a new technique that can determine the motion of the spacecraft relative to the current sheet, we have built the first global map of t…
Scale-Dependent Kurtosis of Magnetic Field Fluctuations in the Solar Wind: A Multi-Scale Study With Cluster 2003-2015
Alexandrova, O.; Lion, S.; Nakamura, R. +9 more
During the lifetime of the Cluster mission, the inter-spacecraft distances in the solar wind have changed from the large, fluid, scales (∼104 km), down to the scales of protons (∼102 km). As part of the guest investigator campaign, the mission achieved a formation where a pair of spacecraft were separated by ∼7 km. The small …
Discrete Aurora on the Nightside of Mars: Occurrence Location and Probability
Luhmann, Janet; Fang, Xiaohua; Jakosky, Bruce +7 more
This paper represents the first attempt to predict the occurrence location and probability of discrete electron aurora on the nightside of Mars. We run a 3-D time-dependent magnetohydrodynamic model to characterize the spatial and temporal dynamics of magnetic field and plasma distributions over the course of one planetary rotation. We perform eig…
Decadal and Annual Variations in Meteoric Flux From Ulysses, Wind, and SOFIE Observations
Malaspina, David; Hunziker, Silvan; Sterken, Veerle +3 more
Our solar system is filled with meteoric particles, or cosmic dust, which is either interplanetary or interstellar in origin. Interstellar dust (ISD) enters the heliosphere due to the relative motion of the sun and the interstellar flow. Interplanetary dust (IPD) comes primarily from asteroid collisions or comet sublimation, and comprises the bulk…
Pitch Angle Distribution of MeV Electrons in the Magnetosphere of Jupiter
Witasse, O.; Kollmann, P.; Nénon, Q. +3 more
The magnetosphere of Jupiter harbors the most extreme fluxes of MeV electrons in the solar system and therefore provides a testbed of choice to understand the origin, transport, acceleration, and loss of energetic electrons in planetary magnetospheres. Along this objective, the Pitch Angle Distribution (PAD) of energetic electrons may reveal signa…
Three-Dimensional Structure of the Corona During WHPI Campaign Rotations CR-2219 and CR-2223
Lamy, P.; Gilardy, H.; Nuevo, F. A. +6 more
Differential emission measure tomography (DEMT) and white light (WL) tomography were applied to study the three-dimensional (3D) structure of the global solar corona for two Whole Heliosphere and Planetary Interactions campaign periods, Carrington rotations 2219 and 2223. With DEMT, Solar Dynamics Observatory/Atmospheric Imaging Assembly images we…
A Climatology of Long-Duration High 2-MeV Electron Flux Periods in the Outer Radiation Belt
Artemyev, A. V.; Agapitov, O. V.; Mourenas, D. +1 more
Since the advent of the Space Age, the importance of understanding and forecasting relativistic electron fluxes in the Earth's radiation belts has been steadily growing due to the threat that such particles pose to satellite electronics. Here, we provide a model of long-duration periods of high time-integrated 2-MeV electron flux deep inside the o…