Observational quantification of three-dimensional anisotropies and scalings of space plasma turbulence at kinetic scalesA statistical survey of spectral anisotropy of space plasma turbulence is performed using five years measurements from MMS in the magnetosheath. By measuring the five-point second-order structure…Tieyan Wang, Jiansen He, Olga Alexandrova et al.·Jun 4, 2020SaveLearn
On the residence-time of Jovian electrons in the inner heliosphereJovian electrons serve as an important test-particle distribution in the inner heliosphere and have been used extensively in the past to study the (diffusive) transport of cosmic rays in the inner…A. Vogt, N. E. Engelbrecht, R. D. Strauss et al.·Jun 4, 2020SaveLearn
Toward a Physics Based Model of Hypervelocity Dust ImpactsThere has been important understanding of the process by which a hypersonic dust impact makes an electrical signal on a spacecraft sensor, leading to a fuller understanding of the physics. Zaslavsky…Paul J Kellogg, S. D. Bale, Keith Goetz et al.·Jun 3, 2020SaveLearn
Incorporating Physical Knowledge into Machine Learning for Planetary Space PhysicsRecent improvements in data collection volume from planetary and space physics missions have allowed the application of novel data science techniques. The Cassini mission for example collected over…A. R. Azari, J. W. Lockhart, M. W. Liemohn et al.·Jun 2, 2020SaveLearn
ARTEMIS Observations of Plasma Waves in Laminar and Perturbed Interplanetary ShocksThe 'Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun' (ARTEMIS) mission provides a unique opportunity to study the structure of interplanetary shocks…L. Davis, C. A. Cattell, L. B. Wilson et al.·Jun 1, 2020SaveLearn
Dust impact voltage signatures on Parker Solar Probe: influence of spacecraft floating potentialWhen a fast dust particle hits a spacecraft, it generates a cloud of plasma some of which escapes into space and the momentary charge imbalance perturbs the spacecraft voltage with respect to the…S. D. Bale, K. Goetz, J. W. Bonnell et al.·Jun 1, 2020SaveLearn
Immediate and delayed responses of power lines and transformers in the Czech electric power grid to geomagnetic stormsEruptive events of solar activity often trigger abrupt variations of the geomagnetic field. Through the induction of electric currents, human infrastructures are also affected, namely the equipment…Michal Švanda, Didier Mourenas, Karla Žertová et al.·May 29, 2020SaveLearn
A possible case of sporadic aurora observed at Rio de JaneiroBeing footprints of major magnetic storms and hence major solar eruptions, mid- to low-latitude aurorae have been one of the pathways to understand solar-terrestrial environments. However, it has…Denny M. Oliveira, Hisashi Hayakawa, Ankush Bhaskar et al.·May 27, 2020SaveLearn
Statistics of Solar Wind Electron Breakpoint Energies Using Machine Learning TechniquesSolar wind electron velocity distributions at 1 au consist of a thermal "core" population and two suprathermal populations: "halo" and "strahl". The core and halo are quasi-isotropic, whereas the…Mayur R. Bakrania, I. Jonathan Rae, Andrew P. Walsh et al.·May 26, 2020SaveLearn
Current status and possible extension of the global neutron monitor networkThe global neutron monitor network has been successfully used over several decades to study cosmic ray variations and fluxes of energetic solar particles. Nowadays, it is used also for space weather…Alexander Mishev, Ilya Usoskin·May 26, 2020SaveLearn
The Temperature Anisotropy and Helium Abundance Features of Alfv\'enic Slow Solar Wind Observed by Parker Solar Probe, Helios, and Wind MissionsSlow solar wind is typically characterized as having low Alfv\'enicity, but the occasional occurrence of highly Alfv\'enic slow solar wind (HASSW) raises questions about its source regions and…Jia Huang, Davin E. Larson, Tamar Ervin et al.·May 25, 2020SaveLearn
Assessment of the Performance of Ionospheric Models with NavIC Observations during Geomagnetic StormsThe paper presents an assessment of the performances of the global empirical models: International Reference Ionosphere (IRI)-2016 and the NeQuick2 model derived ionospheric Total Electron Content…Sumanjit Chakraborty, Abhirup Datta·May 22, 2020SaveLearn
The Electromagnetic Signature of Outward Propagating Ion-Scale WavesFirst results from the Parker Solar Probe (PSP) mission have revealed ubiquitous coherent ion-scale waves in the inner heliosphere, which are signatures of kinetic wave-particle interactions and…Trevor A. Bowen, Stuart D. Bale, J. W. Bonnell et al.·May 20, 2020SaveLearn
Polytropic Behavior of Solar Wind Protons Observed by Parker Solar ProbeA polytropic process describes the transition of a fluid from one state to another through a specific relationship between the fluid density and temperature. The value of the polytropic index that…Georgios Nicolaou, George Livadiotis, Robert T. Wicks et al.·May 19, 2020SaveLearn
Kelvin-Helmholtz instability at proton scales with an exact kinetic equilibriumThe Kelvin-Helmholtz instability is a ubiquitous physical process in ordinary fluids and plasmas, frequently observed also in space environments. In this paper, kinetic effects at proton scales in…A. Settino, F. Malara, O. Pezzi et al.·May 19, 2020SaveLearn
Stochastic ion and electron heating on drift instabilities at the bow shockThe analysis of the wave content inside a perpendicular bow shock indicates that heating of ions is related to the Lower-Hybrid-Drift (LHD) instability, and heating of electrons to the…Krzysztof Stasiewicz·May 17, 2020SaveLearn
Six pieces of evidence against the corotation enforcement theory to explain the main aurora at JupiterThe most remarkable feature of the ultraviolet auroras at Jupiter is the ever present and almost continuous curtain of bright emissions centered on each magnetic pole and called the main emissions.…Bertrand Bonfond, Zhonghua Yao, Denis Grodent·May 12, 2020SaveLearn
Comparative studies of Ionospheric models with GNSS and NavIC over the Indian Longitudinal sector during geomagnetic activitiesThis paper presents the storm time comparative analysis of the performances of latest versions of global ionospheric models: International Reference Ionosphere (IRI) 2016, NeQuick 2 (NeQ) and the IRI…Sumanjit Chakraborty, Abhirup Datta, Sarbani Ray et al.·May 11, 2020SaveLearn
Statistical properties of magnetic structures and energy dissipation during turbulent reconnection in the Earth's magnetotailWe present the first statistical study of magnetic structures and associated energy dissipation observed during a single period of turbulent magnetic reconnection, by using the in-situ…K. Bergstedt, H. Ji, J. Jara-Almonte et al.·May 4, 2020SaveLearn
Modeling the 10 September 2017 solar energetic particle event using the iPATH modelOn September 10 2017, a fast coronal mass ejection (CME) erupted from the active region (AR) 12673, leading to a ground level enhancement (GLE) event at Earth. Using the 2D improved Particle…Zhe-Yi Ding, Gang Li, Jun-Xiang Hu et al.·May 1, 2020SaveLearn
Visualizing and Interpreting Unsupervised Solar Wind ClassificationsOne of the goals of machine learning is to eliminate tedious and arduous repetitive work. The manual and semi-automatic classification of millions of hours of solar wind data from multiple missions…Jorge Amaya, Romain Dupuis, Maria Elena Innocenti et al.·Apr 28, 2020SaveLearn
Hyperfine excitation of SH+ by HSH+ is a surprisingly widespread molecular ion in diffuse interstellar clouds. There, it plays an important role triggering the sulfur chemistry. In addition, SH+ emission lines have been…François Lique, Alexandre Zanchet, Niyazi Bulut et al.·Apr 26, 2020SaveLearn
Development of a High Fidelity Simulator for Generalised Photometric Based Space Object Classification using Machine LearningThis paper presents the initial stages in the development of a deep learning classifier for generalised Resident Space Object (RSO) characterisation that combines high-fidelity simulated light curves…James Allworth, Lloyd Windrim, Jeffrey Wardman et al.·Apr 26, 2020SaveLearn
Magnetic Energy Transfer and Distribution between Protons and Electrons for Alfv\'enic Waves at Kinetic Scales in Wavenumber SpaceTurbulent dissipation is considered a main source of heating and acceleration in cosmological plasmas. The alternating current Joule-like term, δ j · δ E, is used to…Die Duan, Jiansen He, Honghong wu et al.·Apr 23, 2020SaveLearn
Barometric Pressure Correction to Gamma-ray Observations and its Energy DependenceCosmic rays (CRs) have been studied extensively in the last century to understand the processes in the universe as well as in the solar system. In today's satellite era, although many observations…Gauri Datar, Geeta Vichare, Selvaraj Chelliah·Apr 23, 2020SaveLearn