Spatially high-resolved solar-wind-induced magnetic field on VenusThe current work investigates the Venusian solar-wind-induced magnetosphere at a high spatial resolution using all Venus Express (VEX) magnetic observations through an unbiased statistical method. We…Maosheng He, Joachim Vogt, Eduard Dubinin et al.·Jun 10, 2021SaveLearn
The solar-wind angular-momentum flux observed during Solar Orbiter's first orbitAims: We present the first measurements of the solar-wind angular-momentum (AM) flux recorded by the Solar Orbiter spacecraft. Our aim is the validation of these measurements to support future…Daniel Verscharen, David Stansby, Adam J. Finley et al.·Jun 3, 2021SaveLearn
Variations in the pickup ion density structure in response to the growth of the Kelvin--Helmholtz instability along the heliopauseFeatures of the response of pickup ions (PUIs) to the Kelvin--Helmholtz instability (KHI) on the heliopause (HP) are examined by means of two-dimensional hybrid simulations. We assume the supersonic…Ken Tsubouchi·May 31, 2021SaveLearn
Statistical Properties of three-dimensional Hall Magnetohydrodynamics TurbulenceThe three-dimensional (3D) Hall magnetohydrodynamics (HMHD) equations are often used to study turbulence in the solar wind. Some earlier studies have investigated the statistical properties of 3D…Sharad K Yadav, Hideaki Miura, Rahul Pandit·May 27, 2021SaveLearn
What Sustained Multi-Disciplinary Research Can Achieve: The Space Weather Modeling FrameworkMHD-based global space weather models have mostly been developed and maintained at academic institutions. While the "free spirit" approach of academia enables the rapid emergence and testing of new…Tamas I. Gombosi, Yuxi Chen, Alex Glocer et al.·May 27, 2021SaveLearn
Relativistic light sails need to billowWe argue that light sails that are rapidly accelerated to relativistic velocities by lasers must be significantly curved in order to reduce their mechanical stresses and avoid tears. Using an…Matthew F. Campbell, John Brewer, Deep Jariwala et al.·May 23, 2021SaveLearn
Long-term Orbit Stability of the Apollo 11 Eagle Lunar Module Ascent StageThe Apollo 11 Eagle Lunar Module ascent stage was abandoned in lunar orbit after the historic landing in 1969. Its fate is unknown. Numerical analysis described here provides evidence that this…James Meador·May 21, 2021SaveLearn
A powerful machine learning technique to extract proton core, beam and alpha-particle parameters from velocity distribution functions in space plasmasContext: The analysis of the thermal part of velocity distribution functions (VDF) is fundamentally important for understanding the kinetic physics that governs the evolution and dynamics of space…Daniel Vech, Michael L. Stevens, Kristoff W. Paulson et al.·May 18, 2021SaveLearn
Statistical study of electron density turbulence and ion-cyclotron waves in the inner heliosphere: Solar Orbiter observationsThe recently released spacecraft potential measured by the RPW instrument on-board Solar Orbiter has been used to estimate the solar wind electron density in the inner heliosphere. Solar-wind…F. Carbone, L. Sorriso-Valvo, Yu. V. Khotyaintsev et al.·May 17, 2021SaveLearn
Global ionospheric response to a periodic sequence of HSS/CIR events during the 2007-2008 solar minimumIn this study, we investigate the global ionospheric impact of high-speed solar wind streams/corotating interaction regions (HSS/CIR). A series of ten such events are identified between December 1st…Catalin Negrea, Costel Munteanu, Marius Mihai Echim·May 14, 2021SaveLearn
Role of the Solar Minimum in the Waiting Time Distribution Throughout the HeliosphereWe explore the tail of various waiting time datasets of processes that follow a nonstationary Poisson distribution with a sinusoidal driver. Analytically, we find that the distribution of large…Yosia I. Nurhan, Jay R. Johnson, Jonathan R. Homan et al.·May 12, 2021SaveLearn
Charged particle scattering in dipolarized magnetotailThe Earth's magnetotail is characterized by stretched magnetic field lines. Energetic particles are effectively scattered due to the field-line curvature, which then leads to isotropization of…A. S. Lukin, A. V. Artemyev, A. A. Petrukovich et al.·May 12, 2021SaveLearn
The Diffuse Auroral EraserThe source of diffuse aurora has been widely studied and linked to electron cyclotron harmonic (ECH) and upper-band chorus (UBC) waves. It is known that these waves scatter 100s of eV to 10s of keV…R. N. Troyer, A. N. Jaynes, S. L. Jones et al.·May 11, 2021SaveLearn
Prediction of soft proton intensities in the near-Earth space using machine learningThe spatial distribution of energetic protons contributes towards the understanding of magnetospheric dynamics. Based upon 17 years of the Cluster/RAPID observations, we have derived machine…Elena A. Kronberg, Tanveer Hannan, Jens Huthmacher et al.·May 11, 2021SaveLearn
Comparative study of electric currents and energetic particle fluxes in a solar flare and Earth magnetospheric substormMagnetic field-line reconnection is a universal plasma process responsible for the conversion of magnetic field energy to the plasma heating and charged particle acceleration. Solar flares and…Anton Artemyev, Ivan Zimovets, Ivan Sharykin et al.·May 8, 2021SaveLearn
A Pilot Study of Interplanetary Scintillation with FASTObservations of Interplanetary Scintillation (IPS) are an efficient remote-sensing method to study the solar wind and inner heliosphere. From 2016 to 2018, some distinctive observations of IPS…Li-Jia Liu, Bo Peng, Lei Yu et al.·Apr 21, 2021SaveLearn
First dust measurements with the Solar Orbiter Radio and Plasma Wave instrumentImpacts of dust grains on spacecraft are known to produce typical impulsive signals in the voltage waveform recorded at the terminals of electric antennas. Such signals are routinely detected by the…A. Zaslavsky, I. Mann, J. Soucek et al.·Apr 20, 2021SaveLearn
Optimal Fitting of the Freidberg Solution to In Situ Spacecraft Measurements of Magnetic CloudsWe report, in detail, an optimization approach for fitting a three-dimensional (3D) magnetic cloud (MC) model to in situ spacecraft measurements. The model, dubbed the Freidberg solution,…Qiang Hu·Apr 19, 2021SaveLearn
PreMevE Update: Forecasting Ultra-relativistic Electrons inside Earth's Outer Radiation BeltEnergetic electrons inside Earth's outer Van Allen belt pose a major radiation threat to space-borne electronics that often play vital roles in our modern society. Ultra-relativistic electrons with…Saurabh Sinha, Yue Chen, Youzuo Lin et al.·Apr 19, 2021SaveLearn
Evolution of large-amplitude Alfv\'en waves and generation of switchbacks in the expanding solar windMotivated by recent Parker Solar Probe (PSP) observations of "switchbacks" (abrupt, large-amplitude reversals in the radial magnetic field, which exhibit Alfv\'enic correlations) we examine the…Alfred Mallet, Jonathan Squire, Benjamin D. G. Chandran et al.·Apr 16, 2021SaveLearn
ADBSat: Methodology of a novel panel method tool for aerodynamic analysis of satellitesADBSat is a novel software that determines the aerodynamic properties of any body in free-molecular flow. Its main advantage is the fast approximation of the aerodynamics of spacecraft in the lower…Luciana A. Sinpetru, Nicholas H. Crisp, David Mostaza-Prieto et al.·Apr 12, 2021SaveLearn
The Solar Cycle Variations of the Anisotropy of Taylor Scale and Correlation Scale in the Solar Wind TurbulenceThe field-aligned anisotropy of the solar wind turbulence, which is quantified by the ratio of the parallel to the perpendicular correlation (and Taylor) length scales, is determined by simultaneous…G. Zhou, H. -Q. He·Apr 11, 2021SaveLearn
Solar wind current sheets and deHoffmann-Teller analysis: First results of DC electric field measurements by Solar OrbiterSolar Orbiter was launched on February 10, 2020 with the purpose of investigating solar and heliospheric physics using a payload of instruments designed for both remote and in-situ sensing. Similar…K. Steinvall, Yu. V. Khotyaintsev, G. Cozzani et al.·Apr 8, 2021SaveLearn
First-year ion-acoustic wave observations in the solar wind by the RPW/TDS instrument onboard Solar OrbiterElectric field measurements of the Time Domain Sampler (TDS) receiver, part of the Radio and Plasma Waves (RPW) instrument on board Solar Orbiter, often exhibit very intense broadband wave emissions…D. Píša, J. Souček, O. Santolík et al.·Apr 7, 2021SaveLearn
Kinetic Electrostatic Waves and their Association with Current Structures in the Solar WindA variety of kinetic waves develop in the solar wind. The relationship between these waves and larger-scale structures, such as current sheets and ongoing turbulence remain a topic of investigation.…D. B. Graham, Yu. V. Khotyaintsev, A. Vaivads et al.·Apr 4, 2021SaveLearn