Magnetospheric ULF waves driven by external sourcesThe multi-spacecraft missions (Cluster and THEMIS) observations allowed to collect large data base for Ultra Low Frequency (ULF) waves properties, their localization, and sources. Mainly here we…Oleksiy Agapitov, Oleg Cheremnykh·Dec 3, 2015SaveLearn
Perpendicular Diffusion in the Transport of Solar Energetic Particles from Unconnected Sources: The Counter-streaming Particle Beams RevisitedIn some solar energetic particle (SEP) events, a counter-streaming particle beam with a deep depression of flux near 90 degrees pitch angle during the beginning phase is observed. Two different…H. -Q. He·Nov 30, 2015SaveLearn
Interplanetary Coronal Mass Ejections observed by MESSENGER and Venus ExpressInterplanetary coronal mass ejections (ICMEs) observed by the MESSENGER (MES) and Venus Express (VEX) spacecraft have been catalogued and analysed. The ICMEs were identified by a relatively smooth…S. W. Good, R. J. Forsyth·Nov 24, 2015SaveLearn
A new view on the solar wind interaction with the MoonCharacterised by a surface bound exosphere and localised crustal magnetic fields, the Moon was considered as a passive object when solar wind interacts with it. However, the neutral particle and…Anil Bhardwaj, M B Dhanya, Abhinaw Alok et al.·Nov 20, 2015SaveLearn
Concurrent observations at the magnetic equator of small-scale irregularities and large-scale depletions associated with equatorial spread FIn 2014 an all-sky imager (ASI) and an Advanced Modular Incoherent Scatter Radar consisting of 14 panels (AMISR-14) system were installed at the Jicamarca Radio Observatory. The ASI measures airglow…D. A. Hickey, C. R. Martinis, F. S. Rodrigues et al.·Nov 19, 2015SaveLearn
On the electron dynamics during island coalescence in asymmetric magnetic reconnectionWe present an analysis of the electron dynamics during rapid island merging in asymmetric magnetic reconnection. We consider a doubly periodic system with two asymmetric transitions. The upper layer…Emanuele Cazzola, Maria Elena Innocenti, Stefano Markidis et al.·Nov 18, 2015SaveLearn
Classifying orbits in the restricted three-body problemThe case of the planar circular restricted three-body problem is used as a test field in order to determine the character of the orbits of a small body which moves under the gravitational influence…Euaggelos E. Zotos·Nov 16, 2015SaveLearn
An Assessment of the Space Radiation Environment in a Near Equatorial Low Earth Orbit Based on Razaksat-1 SatelliteThe Malaysian satellite RazakSAT-1 was designed to operate in a near-equatorial orbit (NEqO) and low earth orbit (LEO). However, after one year of operation in 2010, communication to the satellite…Wayan Suparta, Siti Katrina Zulkeple·Nov 12, 2015SaveLearn
Principal Component Analysis studies of turbulence in optically thick gasIn this work we investigate the Principal Component Analysis (PCA) sensitivity to the velocity power spectrum in high opacity regimes of the interstellar medium (ISM). For our analysis we use…Caio Correia, Alex Lazarian, Blakesley Burkhart et al.·Nov 11, 2015SaveLearn
Designing Complex Interplanetary Trajectories for the Global Trajectory Optimization CompetitionsThe design of interplanetary trajectories often involves a preliminary search for options later refined/assembled into one final trajectory. It is this broad search that, often being intractable,…Dario Izzo, Daniel Hennes, Luís F. Simões et al.·Nov 3, 2015SaveLearn
Solar energetic particle events: trajectory analysis and flux reconstruction with PAMELAThe PAMELA satellite experiment is providing first direct measurements of Solar Energetic Particles (SEPs) with energies from about 80 MeV to several GeV in near-Earth space, bridging the low energy…A. Bruno, O. Adriani, G. C. Barbarino et al.·Nov 2, 2015SaveLearn
On the role of wave-particle interactions in the macroscopic dynamics of collisionless plasmasHere we present a commentary on the role of small-scale (e.g., few tens of meters) wave-particle interactions in large-scale (e.g., few tens of kilometers) processes and their capacity to accelerate…Lynn B. Wilson, Aaron W. Breneman, Adnane Osmane et al.·Oct 23, 2015SaveLearn
Airglow and magnetic field disturbances over Brazilian region during Chile tsunami (2015)In this work, we present first report on disturbances over Brazilian atmosphere on 16--17 September, 2015 following the Chile tsunami occurrence. Using all-sky imager and magnetometer located at 2330…V. Klausner, F. C. de Meneses, C. M. N. Candido et al.·Oct 22, 2015SaveLearn
Hemispheric Differences in the Response of the Upper Atmosphere to the August 2011 Geomagnetic Storm: A Simulation StudyUsing a three-dimensional nonhydrostatic general circulation model, we investigate the response of the thermosphere-ionosphere system to the 5-6 August 2011 major geomagnetic storm. The model is…Erdal Yiğit, Harald U. Frey, Mark B. Moldwin et al.·Oct 18, 2015SaveLearn
Where should MMS look for electron diffusion regions?A great possible achievement for the MMS mission would be crossing electron diffusion regions (EDR). EDR are regions in proximity of reconnection sites where electrons decouple from field lines,…G. Lapenta, M. Goldman, D. Newman et al.·Oct 13, 2015SaveLearn
Mars as a comet: Solar wind interaction on a large scaleLooking at the Mars-solar wind interaction on a larger spatial scale than the near Mars region, the planet can be seen as an ion source interacting with the solar wind, in many ways like a comet, but…Mats Holmstrom, Xiao-Dong Wang·Oct 8, 2015SaveLearn
Probability density functions for the variable solar wind near the solar cycle minimumUnconditional and conditional statistics is used for studying the histograms of magnetic field multi-scale fluctuations in the solar wind near the solar cycle minimum in 2008. The unconditional…Vörös, Z., M. Leitner et al.·Sep 30, 2015SaveLearn
Details of a Hybrid Model for the Interaction between the Solar Wind and Planets Implemented in FLASHA hybrid plasma solver treats ions as particles and electrons as a fluid. We have implemented a parallel hybrid solver in the FLASH open source software framework. The solver has been applied to…M. Holmstrom, X. -D. Wang·Sep 29, 2015SaveLearn
Energetics of kinetic reconnection in a three-dimensional null points clusterWe performed three-dimensional Particle-in-Cell simulations of magnetic reconnection with multiple magnetic null points. Magnetic field energy conversion into kinetic energy was about five times…Vyacheslav Olshevsky, Giovanni Lapenta, Stefano Markidis·Sep 26, 2015SaveLearn
Role of Z-pinches in magnetic reconnection in space plasmasA widely accepted scenario of magnetic reconnection in collisionless space plasmas is the breakage of magnetic field lines in X-points. In laboratory, reconnection is commonly studied in pinches,…Vyacheslav Olshevsky, Giovanni Lapenta, Stefano Markidis et al.·Sep 26, 2015SaveLearn
Quasiperpendicular high Mach number ShocksShock waves exist throughout the universe and are fundamental to understanding the nature of collisionless plasmas. Reformation is a process, driven by microphysics, which typically occurs at high…A. H. Sulaiman, A. Masters, M. K. Dougherty et al.·Sep 17, 2015SaveLearn
Energetic Particle Pressure at Interplanetary Shocks: STEREO-A ObservationsWe study periods of elevated energetic particle intensities observed by STEREO-A when the partial pressure exerted by energetic (≥83 keV) protons (PEP) is larger than the pressure exerted…D. Lario, R. B. Decker, E. C. Roelof et al.·Sep 15, 2015SaveLearn
Orbit Determination and Differential-drag Control of Planet Labs Cubesat ConstellationsWe present methodology and mission results from orbit determination of Planet Labs nanosatellites and differential-drag control of their relative motion. Orbit determination (OD) is required on…Cyrus Foster, Henry Hallam, James Mason·Sep 10, 2015SaveLearn
Asymmetric magnetic reconnection with a flow shear and applications to the magnetopauseWe perform a theoretical and numerical study of anti-parallel 2D magnetic reconnection with asymmetries in the density and reconnecting magnetic field strength in addition to a bulk flow shear across…C. E. Doss, C. M. Komar, P. A. Cassak et al.·Sep 4, 2015SaveLearn
Quantifying Gyrotropy in Magnetic ReconnectionA new scalar measure of the gyrotropy of a pressure tensor is defined. Previously suggested measures are shown to be incomplete by means of examples for which they give unphysical results. To…M. Swisdak·Sep 2, 2015SaveLearn