Markovian Features of the Solar Wind at Sub-Proton ScalesThe interplanetary magnetic field carried out from the Sun by the solar wind displays fluctuations on a wide range of scales. While at large scales, say at frequencies lower than 0.1-1 Hz,…Simone Benella, Mirko Stumpo, Giuseppe Consolini et al.·Jan 13, 2022SaveLearn
MESSENGER observations of planetary ion enhancements at Mercury's northern magnetospheric cusp during Flux Transfer Event ShowersAt Mercury, several processes can release ions and neutrals out of the planet's surface. Here we present enhancements of dayside planetary ions in the solar wind entry layer during flux transfer…Weijie Sun, James A. Slavin, Anna Milillo et al.·Jan 11, 2022SaveLearn
Radiation Effects from ISM and Cosmic Ray Particle Impacts on Relativistic SpacecraftRelativistic spacecraft, like those proposed by the NASA Starlight program and the Breakthrough Starshot Initiative, will have to survive radiation production that is unique when compared to that…Philip Lubin, Alexander N. Cohen, Jacob Erlikhman·Jan 8, 2022SaveLearn
Design of a rapid transit to Mars mission using laser-thermal propulsionThe application of directed energy to spacecraft mission design is explored using rapid transit to Mars as the design objective. An Earth-based laser array of unprecedented size (10~m diameter) and…Emmanuel Duplay, Zhuo Fan Bao, Sebastian Rodriguez Rosero et al.·Jan 1, 2022SaveLearn
The Kinetic Expansion of Solar-Wind Electrons: Transport Theory and Predictions for the very Inner HeliosphereWe propose a transport theory for the kinetic evolution of solar-wind electrons in the heliosphere. We derive a gyro-averaged kinetic transport equation that accounts for the spherical expansion of…Seong-Yeop Jeong, Daniel Verscharen, Christian Vocks et al.·Jan 1, 2022SaveLearn
Kinetic-scale current sheets in the solar wind at 1 AU: Scale-dependent properties and critical current densityWe present analysis of 17,043 proton kinetic-scale current sheets collected over 124 days of Wind spacecraft measurements in the solar wind at 11 Samples/s magnetic field resolution. The current…Ivan Y. Vasko, Kazbek Alimov, Tai Phan et al.·Dec 31, 2021SaveLearn
Two Approaches for the Passive Charge Management of Contactless Test MassesFree floating Test Masses (TM) of inertial reference instruments accumulate charge mainly through the triboelectric effect during separation from their housings and, if in the space environment, from…S. Wang, S. Saraf, J. Lipa et al.·Dec 30, 2021SaveLearn
A Zero-Radiation Pressure Sunshade for Supporting Climate Change MitigationLimiting climate change to within the 2 C limit requires net zero emissions of CO2 by 2050. However, the window of opportunity is closing fast. Geoengineering as the intentional and large-scale…Olivia Borgue, Andreas M. Hein·Dec 27, 2021SaveLearn
Spectrum of kinetic plasma turbulence at 0.3-0.9 astronomical units from the SunWe investigate spectral properties of turbulence in the solar wind that is a weakly collisional astrophysical plasma, accessible to in-situ observations. Using the Helios search coil magnetometer…Olga Alexandrova, Vamsee Krishna Jagarlamudi, Petr Hellinger et al.·Dec 23, 2021SaveLearn
An overview of the JEM-EUSO program and resultsThe field of UHECRs (Ultra-High energy cosmic Rays) and the understanding of particle acceleration in the cosmos, as a key ingredient to the behaviour of the most powerful sources in the universe, is…M. Bertaina·Dec 18, 2021SaveLearn
The role of extreme geomagnetic storms in the Forbush decrease profileThe Forbush decrease (FD) and Geomagnetic storm (GS) are the two distinct space weather events having common causing agents like interplanetary coronal mass ejection (ICME) or corotating interacting…Anil Raghav, Prathmesh Tari, Kalpesh Ghag et al.·Dec 18, 2021SaveLearn
Multi-spacecraft observations of the structure of the sheath of an interplanetary coronal mass ejection and related energetic ion enhancementSheaths ahead of coronal mass ejections (CMEs) are large heliospheric structures that form with CME expansion and propagation. Turbulent and compressed sheaths contribute to the acceleration of…E. K. J. Kilpua, S. W. Good, N. Dresing et al.·Dec 17, 2021SaveLearn
Cold ionospheric ions in the magnetosphereCold (eV) ions of ionospheric origin are a major source of magnetospheric plasma. These ions dominate the number density for most of the volume of the magnetosphere, most of the time. This affects…M. André, S. Toledo-Redondo, A. W. Yau·Dec 14, 2021SaveLearn
The spacecraft wake: Interference with electric field observations and a possibility to detect cold ionsWakes behind spacecraft caused by supersonic drifting positive ions are common in plasmas and disturb in situ measurements. We review the impact of wakes on observations by the Electric Field and…M. André, A. I. Eriksson, Yu. V. Khotyaintsev et al.·Dec 10, 2021SaveLearn
Applying Magnetic Curvature to to MMS data to identify thin current sheets relative to tail reconnectionMagnetic reconnection X-lines have been observed to be more common duskward of midnight. Thin current sheets have also been postulated to be a necessary precondition for reconnection onset. We take…A. J. Rogers, C. J. Farrugia, R. B. Torbert et al.·Dec 9, 2021SaveLearn
Magnetic Energy Conversion in MHD: Curvature Relaxation and Perpendicular Expansion of Magnetic FieldsThe mechanisms and pathways of magnetic energy conversion are an important subject for many laboratory, space and astrophysical systems. Here, we present a perspective on magnetic energy conversion…Senbei Du, Hui Li, Xiangrong Fu et al.·Dec 5, 2021SaveLearn
Modelling of Geomagnetically Induced Currents in the Czech Transmission GridWe investigate the maximum expected magnitudes of the geomagnetically induced currents (GICs) in the Czech transmission power network. We compute a model utilising the Lehtinen-Pirjola method,…Michal Švanda, Anna Smičková, Tatiana Výbošťoková·Dec 4, 2021SaveLearn
Ionospheric Plasma Flows Associated with the Formation of the Distorted Nightside End of A Transpolar ArcWe investigate ionospheric flow patterns occurring on 28 January 2002 associated with the development of the nightside distorted end of a J-shaped transpolar arc (nightside distorted TPA). Based on…Motoharu Nowada, Adrian Grocott, Quan-Qi Shi·Dec 4, 2021SaveLearn
Over 20-year global magnetohydrodynamic simulation of Earth's magnetosphereWe present our approach to modeling over 20 years of the solar wind-magnetosphere-ionosphere system using version 5 of the Grand Unified Magnetosphere-Ionosphere Coupling Simulation (GUMICS-5). As…Ilja Honkonen, Max van de Kamp, Theresa Hoppe et al.·Dec 3, 2021SaveLearn
An improved technique for measuring plasma density to high frequencies on the Parker Solar ProbeThe correlation between the plasma density measured in space and the surface potential of an electrically conducting satellite body with biased electric field detectors has been recognized and used…Forrest Mozer, Stuart Bale, Paul Kellogg et al.·Dec 1, 2021SaveLearn
Impact angle control of local intense dB/dt variations during shock-induced substormsThe impact of interplanetary shocks on the magnetosphere can trigger magnetic substorms that intensify auroral electrojet currents. These currents enhance ground magnetic field perturbations…Denny M. Oliveira, James M. Weygand, Eftyhia Zesta et al.·Dec 1, 2021SaveLearn
Estimation of the solar wind extreme eventsThis research provides an analysis of extreme events in the solar wind and in the magnetosphere due to disturbances of the solar wind. Extreme value theory has been applied to a 20 year data set from…C. Larrodera, L. Nikitina, C. Cid·Nov 30, 2021SaveLearn
Observations of rapidly growing whistler waves in front of space plasma shockWhistler mode wave is a fundamental perturbation of electromagnetic fields and plasmas in various environments including planetary space, laboratory and astrophysics. The origin and evolution of the…Jiansen He, Xingyu Zhu, Qiaowen Luo et al.·Nov 29, 2021SaveLearn
Orbit-localised thermosphere density prediction using a Kalman filter based calibration of empirical modelsAccurate estimation of thermosphere mass density is critical to determining how satellite orbits evolve over time and thus to planning and managing space missions. Empirical thermosphere models are…George Bowden·Nov 26, 2021SaveLearn
A Catalog of Interplanetary Coronal Mass Ejections Observed by Juno between 1 and 5.4 AUWe use magnetic field measurements by the Juno spacecraft to catalog and investigate interplanetary coronal mass ejections (ICMEs) beyond 1 AU. During its cruise phase, Juno spent about 5 years in…Emma E. Davies, Robert J. Forsyth, Réka M. Winslow et al.·Nov 22, 2021SaveLearn