Kinetic Signatures and Intermittent Turbulence in the Solar Wind PlasmaA connection between kinetic processes and intermittent turbulence is observed in the solar wind plasma using measurements from the Wind spacecraft at 1 AU. In particular, kinetic effects such as…K. T. Osman, W. H. Matthaeus, B. Hnat et al.·Mar 29, 2012SaveLearn
Three dimensional density cavities in guide field collisionless magnetic reconnectionParticle-in-Cell simulations of collisionless magnetic reconnection with a guide field reveal for the first time the three dimensional features of the low density regions along the magnetic…Stefano Markidis, Giovanni Lapenta, Andrey Divin et al.·Mar 10, 2012SaveLearn
The women day stormOn behalf of the International Women Day, the Sun gave a hot kiss to our mother Earth in a form of a full halo CME generated by the yesterday's double X-class flare. The resulting geomagnetic…Aleksei Parnowski, Anna Polonska, Oleg Semeniv·Mar 8, 2012SaveLearn
A Generalized Diffusion Tensor for Fully Anisotropic Diffusion of Energetic Particles in the Heliospheric Magnetic FieldThe spatial diffusion of cosmic rays in turbulent magnetic fields can, in the most general case, be fully anisotropic, i.e. one has to distinguish three diffusion axes in a local, field-aligned…Frederic Effenberger, Horst Fichtner, Klaus Scherer et al.·Feb 28, 2012SaveLearn
Magnetic field amplification in electron phase-space holes and related effectsThree-dimensional electron phase space holes are shown to be positive charges on the plasma background which produce a radial electric field and force the trapped electron component into an azimuthal…R. A. Treumann, W. Baumjohann·Feb 24, 2012SaveLearn
STEREO measurements of electron acceleration beyond fast Fermi at the bow shockSolar wind electrons are accelerated and reflected upstream by the terrestrial bow shock into a region known as the electron foreshock. Previously observed electron spectra at low energies are…Marc Pulupa, Stuart D. Bale, Andrea Opitz et al.·Feb 16, 2012SaveLearn
Desaturation Maneuvers and Precise Orbit Determination for the BepiColombo MissionThe purpose of this work is the analysis of the consequences that desaturation maneuvers can have in the precise orbit determination corresponding to the Radio Science Experiment (MORE) of the…Elisa Maria Alessi, Stefano Cicalo', Andrea Milani et al.·Feb 15, 2012SaveLearn
The peculiar source XSS J12270-4859: a LMXB detected by FERMI ?The X-ray source XSS J12270-4859 has been first suggested to be a magnetic cataclysmic variable of Intermediate Polar type on the basis of its optical spectrum and a possible 860 s X-ray periodicity.…J. M. Bonnet-Bidaud, D. de Martino, M. Mouchet et al.·Feb 13, 2012SaveLearn
Local Anisotropy, Higher Order Statistics, and Turbulence SpectraCorrelation anisotropy emerges dynamically in magnetohydrodynamics (MHD), producing stronger gradients across the large-scale mean magnetic field than along it. This occurs both globally and locally,…W. H. Matthaeus, S. Servidio, P. Dmitruk et al.·Jan 19, 2012SaveLearn
A New Technique for Spectral Analysis of Ionospheric TEC Fluctuations Observed with the Very Large Array VHF System: From QP Echoes to MSTIDsWe have used a relatively long, contiguous VHF observation of a bright cosmic radio source (Cygnus A) with the Very Large Array (VLA) through the nighttime, midlatitude ionosphere to demonstrate the…J. F. Helmboldt, T. J. W. Lazio, H. T. Intema et al.·Jan 18, 2012SaveLearn
High-precision Measurements of Ionospheric TEC Gradients with the Very Large Array VHF SystemWe have used a relatively long, contiguous VHF observation of a bright cosmic radio source (Cygnus A) with the Very Large Array (VLA) to demonstrate the capability of this instrument to study the…J. F. Helmboldt, T. J. W. Lazio, H. T. Intema et al.·Jan 18, 2012SaveLearn
Kinetic cascade beyond magnetohydrodynamics of solar wind turbulence in two-dimensional hybrid simulationsThe nature of solar wind turbulence in the dissipation range at scales much smaller than the large MHD scales remains under debate. Here a two-dimensional model based on the hybrid code abbreviated…Daniel Verscharen, Eckart Marsch, Uwe Motschmann et al.·Jan 13, 2012SaveLearn
Magnetopause displacements: The possible role of dustLarge compressions of the magnetopause are proposed to occasionally result from temporary encounters of the magnetosphere with dust streams in interplanetary space. Such streams may have their origin…R. A. Treumann, W. Baumjohann·Jan 13, 2012SaveLearn
The United Nations Human Space Technology Initiative (HSTI)The Human Space Technology Initiative (HSTI) has been launched under the framework of the United Nations Programme on Space Applications with its aims of promoting international cooperation in human…M. Ochiai, I. Dietlein, A. Niu et al.·Jan 9, 2012SaveLearn
Proposal for a United Nations Basic Space Technology InitiativeThe United Nations Programme on Space Applications, implemented by the United Nations Office for Outer Space Affairs, promotes the benefits of space-based solutions for sustainable economic and…W. R. Balogh, H. J. Haubold·Jan 8, 2012SaveLearn
Testing the Flyby Anomaly with the GNSS ConstellationWe propose the concept of a space mission to probe the so called flyby anomaly, an unexpected velocity change experienced by some deep-space probes using earth gravity assists. The key feature of…O. Bertolami, F. Francisco, P. J. S. Gil et al.·Dec 30, 2011SaveLearn
Sudden Intensity Increases and Radial Gradient Changes of Cosmic Ray MeV Electrons and Protons Observed at Voyager 1 beyond 111 AU in the HeliosheathVoyager 1 has entered regions of different propagation conditions for energetic cosmic rays in the outer heliosheath beginning at a distance of about 111 AU from the Sun. This conclusion is based on…W. R Webber, F. B. McDonald, A. C. Cummings et al.·Dec 15, 2011SaveLearn
Trajectories of charged particles trapped in Earth's magnetic fieldI outline the theory of relativistic charged-particle motion in the magnetosphere in a way suitable for undergraduate courses. I discuss particle and guiding center motion, derive the three adiabatic…M. Kaan Öztürk·Dec 15, 2011SaveLearn
Note on the single-shock solutions of the Korteweg-de Vries-Burgers equationThe well-known shock solutions of the Korteweg-de Vries-Burgers equation are revisited, together with their limitations in the context of plasma (astro)physical applications. Although available in…Ioannis Kourakis, Sharmin Sultana, Frank Verheest·Dec 6, 2011SaveLearn
Intermittent Dissipation and Local Heating in the Solar WindEvidence for inhomogeneous heating in the interplanetary plasma near current sheets dynamically generated by magnetohydrodynamic (MHD) turbulence is obtained using measurements from the ACE…K. T. Osman, W. H. Matthaeus, M. Wan et al.·Nov 29, 2011SaveLearn
Recovery phase of magnetic storms induced by different interplanetary driversStatistical analysis of Dst behaviour during recovery phase of magnetic storms induced by different types of interplanetary drivers is made on the basis of OMNI data in period 1976-2000. We study…Yu. I. Yermolaev, I. G. Lodkina, N. S. Nikolaeva et al.·Nov 29, 2011SaveLearn
Is there long-range memory in solar activity on time scales shorter than the sunspot period?The sunspot number (SSN), the total solar irradiance (TSI), a TSI reconstruction, and the solar flare index (SFI), are analyzed for long-range persistence (LRP). Standard Hurst analysis yields $H…Martin Rypdal, Kristoffer Rypdal·Nov 21, 2011SaveLearn
The Entropy Index (EI): an Auxiliary Tool to Identify the Occurrence of Interplanetary Magnetic CloudsBy the study of the dynamical processes related to entropy, this work aims to create a mathematical tool to identify magnetic clouds (MCs) in the interplanetary space using only interplanetary…G. A. Ojeda, O. Mendes, M. A. Calzadilla et al.·Nov 17, 2011SaveLearn
Nuclear and Non-Ionizing Energy-loss of Electrons with Low and Relativistic Energies in Materials and Space EnvironmentThe treatment of the electron-nucleus interaction based on the Mott differential cross section was extended to account for effects due to screened Coulomb potentials, finite sizes and finite rest…M. J. Boschini, C. Consolandi, M. Gervasi et al.·Nov 17, 2011SaveLearn
Bayesian Linking of Geosynchronous Orbital Debris Tracks as seen by the Large Synoptic Survey TelescopeWe describe a Bayesian sampling model for linking and constraining orbit models from angular observations of "streaks" in optical telescope images. Our algorithm is particularly suited to…Michael D. Schneider·Nov 10, 2011SaveLearn