Simulation of the dynamics in the magnetotail current sheetThe dynamics in the magnetosphere current sheet was simulated following transformations to the rectangular NxM array of cells (cellular automaton) originally proposed by Koselov and Koselova (2002).…Arian Ojeda, Bienvenido Lazo, Alexander Calzadilla et al.·Aug 1, 2013SaveLearn
Implementing an analytical formula for calculating M(3000)F2 in the ionosonde operated in HavanaDetermining the factor M(3000)F2 is very important for ionograms analysis obtained of Ionosonde. M(3000)F2 is the result of the maximum usable frequency (MUF), for to 3000 km distance, divided by the…Arian Ojeda González, Silvio González, Katy Alazo et al.·Aug 1, 2013SaveLearn
Solar Sail: Materials and Space Environmental EffectsTheoretical aspects of a solar sail material degradation are presented when the solar electromagnetic and corpuscular forms of radiation were considered as sources of degradation. The analysis of the…Roman Ya. Kezerashvili·Jul 28, 2013SaveLearn
A note on the structure and kinematics of Harris current sheetsThe flat Harris current sheet model has become a powerful initial equilibrium in theory and simulation of magnetic reconnection in the magnetotail, at the magnetopause and also in multiple current…R. A. Treumann, W. Baumjohann·Jul 26, 2013SaveLearn
On the Cause of Supra-Arcade Downflows in Solar FlaresA model of supra-arcade downflows (SADs), dark low density regions also known as tadpoles that propagate sunward during solar flares, is presented. It is argued that the regions of low density are…P. A. Cassak, J. F. Drake, J. T. Gosling et al.·Jul 15, 2013SaveLearn
TEC evidence for near-equatorial energy deposition by 30-keV electrons in the topside ionosphereObservations of energetic electrons (10 - 300 keV) by NOAA/POES and DMSP satellites at heights <1000 km during the period from 1999 to 2010 allowed finding abnormal intense fluxes of ~106 - 107…A. V. Suvorova, A. V. Dmitriev, L. -C. Tsai et al.·Jul 8, 2013SaveLearn
Effects of the non-uniform initial environment and the guide field on the plasmoid instabilityEffects of non-uniform initial mass density and temperature on the plasmoid instability are studied via 2.5-dimensional resistive magnetohydrodynamic(MHD) simulations. Our results indicate that the…Lei Ni, Jun Lin, Nicholas A. Murphy·Jul 8, 2013SaveLearn
Instabilities Driven by the Drift and Temperature Anisotropy of Alpha Particles in the Solar WindWe investigate the conditions under which parallel-propagating Alfvén/ion-cyclotron (A/IC) waves and fast-magnetosonic/whistler (FM/W) waves are driven unstable by the differential flow and…Daniel Verscharen, Sofiane Bourouaine, Benjamin D. G. Chandran·Jul 7, 2013SaveLearn
Self-Consistent Ion Cyclotron Anisotropy-Beta Relation for Solar Wind ProtonsWe derive a set of self-consistent marginally stable states for a system of ion-cyclotron waves propagating parallel to the large-scale magnetic field through a homogeneous proton-electron plasma.…Philip A. Isenberg, Bennett A. Maruca, Justin C. Kasper·Jul 3, 2013SaveLearn
Proton Kinetic Effects in Vlasov and Solar Wind TurbulenceKinetic plasma processes have been investigated in the framework of solar wind turbulence, employing Hybrid Vlasov-Maxwell (HVM) simulations. The dependency of proton temperature anisotropy…S. Servidio, K. T. Osman, F. Valentini et al.·Jun 27, 2013SaveLearn
Solar Modulation of Cosmic RaysThis is an overview of the solar modulation of cosmic rays in the heliosphere. It is a broad topic with numerous intriguing aspects so that a research framework has to be chosen to concentrate on.…Marius Potgieter·Jun 19, 2013SaveLearn
A Parallel-Propagating Alfvénic Ion-Beam Instability in the High-Beta Solar WindWe investigate the conditions under which parallel-propagating Alfvén/ion-cyclotron waves are driven unstable by an isotropic (T α = Tα) population of alpha particles drifting…Daniel Verscharen, Sofiane Bourouaine, Benjamin D. G. Chandran et al.·Jun 11, 2013SaveLearn
Convective Amplification of Electromagnetic Ion Cyclotron Waves From Ring-distribution Protons in the Inner MagnetosphereThe growth of electromagnetic ion cyclotron waves (EMIC) due to a ring distribution of Hydrogen ions is examined. Though these distributions are more commonly implicated in the generation of…Manish Mithaiwala, Chris Crabtree, Gurudas Ganguli et al.·Jun 10, 2013SaveLearn
Lower hybrid to whistler mode conversion on a density striationWhen a wave packet composed of short wavelength lower hybrid modes traveling in an homogeneous plasma region encounters an inhomogeneity, it can resonantly excite long wavelength whistler waves via a…Enrico Camporeale, Gian Luca Delzanno, Patrick Colestock·May 30, 2013SaveLearn
Elliptical model of cutoff boundaries for the solar energetic particles measured by POES satellites in December 2006Experimental data from a constellation of five NOAA POES satellites were used for studying the penetration of solar energetic particles (SEP) to high latitudes during long-lasting SEP events on…A. V. Dmitriev, P. T. Jayachandran, L. -C. Tsai·May 29, 2013SaveLearn
A Predictive Model of Geosynchronous Magnetopause CrossingsWe have developed a model predicting whether or not the magnetopause crosses geosynchronous orbit at given location for given solar wind pressure Psw, Bz component of interplanetary magnetic field…A. Dmitriev, A. Suvorova, J. -K. Chao·May 29, 2013SaveLearn
Pulsed Laser Interactions with Space Debris: Target Shape EffectsAmong the approaches to the proposed mitigation and remediation of the space debris problem is the de-orbiting of objects in low Earth orbit through irradiation by ground-based high-intensity pulsed…D. A. Liedahl, A. Rubenchik, S. B. Libby et al.·May 16, 2013SaveLearn
The Nature of Subproton Scale Turbulence in the Solar WindThe nature of subproton scale fluctuations in the solar wind is an open question, partly because two similar types of electromagnetic turbulence can occur: kinetic Alfven turbulence and whistler…C. H. K. Chen, S. Boldyrev, Q. Xia et al.·May 13, 2013SaveLearn
Quantified Energy Dissipation Rates: Electromagnetic Wave Observations in the Terrestrial Bow ShockWe present the first quantified measure of the rate of energy dissipated per unit volume by high frequency electromagnetic waves in the transition region of the Earth's collisionless bow shock…L. B. Wilson, D. G. Sibeck, A. W. Breneman et al.·May 10, 2013SaveLearn
The interplanetary magnetic field: radial and latitudinal dependencesResults of the analysis of spacecraft measurements at 1-5.4 AU are presented within the scope of the large-scale interplanetary magnetic field (IMF) structure investigation. The work is focused on…Olga V. Khabarova·May 6, 2013SaveLearn
Effects of Plasma Drag on Low Earth Orbiting Satellites due to Heating of Earth's Atmosphere by Coronal Mass EjectionsSolar events, such as coronal mass ejections (CMEs) and solar flares, heat up the upper atmosphere and near-Earth space environment. Due to this heating and expansion of the outer atmosphere by the…Victor U. J. Nwankwo, Sandip K. Chakrabarti·May 1, 2013SaveLearn
Residual Energy Spectrum of Solar Wind TurbulenceIt has long been known that the energy in velocity and magnetic field fluctuations in the solar wind is not in equipartition. In this paper, we present an analysis of 5 years of Wind data at 1 AU to…C. H. K. Chen, S. D. Bale, C. S. Salem et al.·Apr 29, 2013SaveLearn
Temporal Variability of Waves at the Proton Cyclotron Frequency Upstream from Mars: Implications for Mars Distant Hydrogen ExosphereWe report on the temporal variability of the occurrence of waves at the local proton cyclotron frequency upstream from the Martian bow shock from Mars Global Surveyor observations during the first…Cesar Bertucci, Norberto Romanelli, Jean-Yves Chaufray et al.·Apr 26, 2013SaveLearn
Modification of Proton Velocity Distributions by Alfvenic Turbulence in the Solar WindIn the present paper, the proton velocity distribution function (VDF)in the solar wind is determined by solving numerically the kinetic evolution equation. We compare the results obtained when…Viviane Pierrard, Yuriy Voitenko·Apr 8, 2013SaveLearn
Reconnection and electron temperature anisotropy in sub-proton scale plasma turbulenceTurbulent behavior at sub-proton scales in magnetized plasmas is important for a full understanding of the energetics of astrophysical flows such as the solar wind. We study the formation of electron…Christopher T. Haynes, David Burgess, Enrico Camporeale·Apr 4, 2013SaveLearn