Von Karman-Howarth equation for Hall magnetohydrodynamics: Hybrid simulationsA dynamical vectorial equation for homogeneous incompressible Hall-MHD turbulence together with the exact scaling law for third-order correlation tensors, analogous to that for the incompressible…Petr Hellinger, Andrea Verdini, Simone Landi et al.·Mar 26, 2018SaveLearn
Plasma Density Structures at Comet 67P/Churyumov-GerasimenkoWe present Rosetta RPC case study from four events at various radial distance, phase angle and local time from autumn 2015, just after perihelion of comet 67P/Churyumov-Gerasimenko. Pulse like (high…I. A. D. Engelhardt, A. I. Eriksson, G. Stenberg Wieser et al.·Mar 23, 2018SaveLearn
The State of the Solar Wind, Magnetosphere, and Ionosphere During the Maunder MinimumBoth direct observations and reconstructions from various datasets, suggest that conditions were radically different during the Maunder Minimum (MM) than during the space era. Using an MHD model, we…Pete Riley, Roberto Lionello, Jon A. Linker et al.·Mar 19, 2018SaveLearn
Generation of Electron Whistler Waves at the Mirror Mode Magnetic Holes: MMS Observations and PIC SimulationThe Magnetospheric Multiscale (MMS) mission has observed electron whistler waves at the center and at the edges of magnetic holes in the dayside magnetosheath. The magnetic holes are nonlinear mirror…Narges Ahmadi, Frederick Wilder, Robert Ergun et al.·Mar 16, 2018SaveLearn
Characterizing Ion Flows Across a Dipolarization JetThe structure of dipolarization jets with finite width in the dawn-dusk direction relevant to magnetic reconnection in the Earth's magnetotail is explored with particle-in-cell simulations. We carry…Harry Arnold, Marc Swisdak, James Drake·Mar 16, 2018SaveLearn
Study of Total Electron Content-TEC and electron density profile during geomagnetic stormsTotal Electron Content (TEC) and electron density are the basic parameters, which determine the major properties of the Ionosphere. Detail study of the ionospheric TEC and electron density variations…Niraj Bhattarai, Narayan Prasad Chapagain, Binod Adhikari·Mar 16, 2018SaveLearn
Catalogue of >55 MeV Wide-longitude Solar Proton Events Observed by SOHO, ACE, and the STEREOs at ≈1 AU during 2009-2016Based on energetic particle observations made at ≈1 AU, we present a catalogue of 46 wide-longitude (>45) solar energetic particle (SEP) events detected at multiple locations during…Miikka Paassilta, Athanasios Papaioannou, Nina Dresing et al.·Mar 14, 2018SaveLearn
ALPS: The Arbitrary Linear Plasma SolverThe Arbitrary Linear Plasma Solver (ALPS) is a parallelised numerical code that solves the dispersion relation in a hot (even relativistic) magnetised plasma with an arbitrary number of particle…Daniel Verscharen, Kristopher G. Klein, Benjamin D. G. Chandran et al.·Mar 13, 2018SaveLearn
Low-altitude ion heating, downflowing ions, and BBELF waves in the return current regionHeavy (O+) ion energization and field-aligned motion in and near the ionosphere are still not well understood. Based on observations from the CASSIOPE Enhanced Polar Outflow Probe (e-POP) at…Yangyang Shen, David J. Knudsen, Johnathan K. Burchill et al.·Mar 10, 2018SaveLearn
Magnetospheric Multi-Scale Observations of High-Energy Electrons and Protons in the Vicinity of Southern High-Altitude Cusp BoundariesRecent Magnetosphere Multiscale (MMS) observations found 238 high energy (> 40 keV) electron "leaking" events in the the magnetosheath [Cohen et al., 2017]. While several sources have been proposed,…Katariina Nykyri, Christina Chu, Xuanye Ma et al.·Mar 5, 2018SaveLearn
Local energy transfer rate and kinetic processes: the fate of turbulent energy in two-dimensional Hybrid Vlasov-Maxwell numerical simulationsThe nature of the cross-scale connections between the inertial range turbulent energy cascade and the small-scale kinetic processes in collisionless plasmas is explored through the analysis of…Luca Sorriso-Valvo, Denise Perrone, Oreste Pezzi et al.·Mar 5, 2018SaveLearn
Midlatitude ionospheric F2-layer response to eruptive solar events-caused geomagnetic disturbances over Hungary during the maximum of the solar cycle 24: a case studyIn our study we analyze and compare the response and behavior of the ionospheric F2 and of the sporadic E-layer during three strong (i.e., Dst <-100nT) individual geomagnetic storms from years 2012,…K. A. Berényi, V. Barta, Á. Kis·Mar 5, 2018SaveLearn
Modeling the evolution and propagation of the 2017 September 9th and 10th CMEs and SEPs arriving at Mars constrained by remote-sensing and in-situ measurementOn 2017-09-10, solar energetic particles (SEPs) originating from the active region 12673 were registered as a ground level enhancement (GLE) at Earth and the biggest GLE on the surface of Mars as…Jingnan Guo, Mateja Dumbović, Robert F. Wimmer-Schweingruber et al.·Mar 1, 2018SaveLearn
Parallel plate capacitor analogy of equatorial plasma bubble and associated fringe fields with implications to equatorial valley region irregularitiesVHF radar echoes from the valley region plasma irregularities, displaying ascending pattern, are often observed during the active phase of equatorial plasma bubble in the close vicinity of the…Sampath Mukherjee, A. K. Patra·Mar 1, 2018SaveLearn
Magnetic Reconnection May Control the Ion-Scale Spectral Break of Solar Wind TurbulenceThe power spectral density of magnetic fluctuations in the solar wind exhibits several power-law-like frequency ranges with a well defined break between approximately 0.1 and 1 Hz in the spacecraft…Daniel Vech, Alfred Mallet, Kristopher G. Klein et al.·Feb 28, 2018SaveLearn
Forecasting Solar Energetic Particle Fluence with Multi-Spacecraft ObservationsForecasting Solar Energetic Particle (SEP) fluence, as integrated over an SEP event, is an important element when estimating the effect of solar eruptions on humans and technology in space. Current…T. Laitinen, S. Dalla, M. Battarbee et al.·Feb 27, 2018SaveLearn
A quasi-physical dynamic reduced order model for thermospheric mass density via Hermitian Space Dynamic Mode DecompositionThermospheric mass density is a major driver of satellite drag, the largest source of uncertainty in accurately predicting the orbit of satellites in low Earth orbit (LEO) pertinent to space…Piyush M. Mehta, Richard Linares, Eric K. Sutton·Feb 24, 2018SaveLearn
Dynamics of large-scale solar-wind streams obtained by the double superposed epoch analysis. 3. Deflection of speed vectorThis work is a continuation of our previous articles (Yermolaev et al. in J. Geophys.Res. 120, 7094, 2015, Yermolaev et al. in Solar Phys. 292, 193, 2017), which describe the average temporal…Yu. I. Yermolaev, I. G. Lodkina, M. Yu. Yermolaev·Feb 24, 2018SaveLearn
Characteristics and energy dependence of recurrent galactic cosmic-ray flux depressions and of a Forbush decrease with LISA PathfinderGalactic cosmic-ray (GCR) energy spectra observed in the inner heliosphere are modulated by the solar activity, the solar polarity and structures of solar and interplanetary origin. A high counting…M. Armano, H. Audley, J. Baird et al.·Feb 23, 2018SaveLearn
The Spectra of 2H and 3He Secondary Cosmic Ray Isotopes from ~20-85 MeV/nuc as Measured Using the B-end HET Telescope on Voyager beyond the Heliopause and a Fit to These Interstellar Spectra Using a Leaky Box Propagation ModelWe have measured the intensity and spectra of the cosmic ray secondary isotopes 2H and 3He and the primary isotopes H and 4He between 20-85 MeV/nuc during a 5 year time period after Voyager 1 (V1)…W. R. Webber, N. Lal, B. Heikkila·Feb 22, 2018SaveLearn
2-D model of the global ionospheric conductor connected with the magnetospheric conductorsA model of the ionospheric global conductor is designed. The ionospheric conductor is considered in the framework of a two-dimensional approximation based on high conductivity in the direction of the…Valery V. Denisenko·Feb 22, 2018SaveLearn
On the Rates of Steady, Quasi-steady and Impulsive Magnetic ReconnectionMagnetic reconnection (MR) is considered as a major source of particle energization in astrophysical plasma. In the past, analysis of MR often assumes the magnetostatic condition, i.e. $∂t =…H. Che·Feb 21, 2018SaveLearn
Geomagnetic storm forecasting service StormFocus: 5 years onlineForecasting geomagnetic storms is highly important for many space weather applications. In this study we review performance of the geomagnetic storm forecasting service StormFocus during 2011--2016.…Tatiana Podladchikova, Anatoly Petrukovich, Yuri Yermolaev·Feb 19, 2018SaveLearn
Single ICMEs and Complex Transient Structures in the Solar wind in 2010 -- 2011We analyzed statistics, solar sources and properties of interplanetary coronal mass ejections (ICMEs) in the solar wind. In comparison with the first eight years of Cycle 23, during the same period…D. Rodkin, V. Slemzin, A. N. Zhukov et al.·Feb 16, 2018SaveLearn
Radial transport and plasma heating in Jupiter's magnetodiscThe ion temperature of the magnetosphere of Jupiter derived from Galileo PLS data was observed to increase by about an order of magnitude from 10 to 40 Jupiter radii. This suggests the presence of…C. S. Ng, P. A. Delamere, V. Kaminker et al.·Feb 14, 2018SaveLearn