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Space Physics papers — page 80

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A Fit to the Galactic Cosmic Ray Hydrogen and Helium Spectra at Voyager 1 at Low Energies and Earth Based Measurements at Much Higher Energies with Identical Rigidity Independent Source Spectra for the Hydrogen and Helium Nuclei
Voyager 1 data from beyond the heliopause provide the first direct measurements of the interstellar cosmic ray spectra below 1 GeVnuc. In this paper we combine these Voyager measurements of H and He…
W. R. Webber, P. R. HigbieMar 3, 2015
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Predicted Impacts of Proton Temperature Anisotropy on Solar Wind Turbulence
Particle velocity distributions measured in the weakly collisional solar wind are frequently found to be non-Maxwellian, but how these non-Maxwellian distributions impact the physics of plasma…
Kristopher G. Klein, Gregory G. HowesMar 2, 2015
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DEF: The Physical Basis of Electromagnetic Propulsion
The very existence of the physical vacuum provides a framework to propose a general mechanism for propelling bodies through an agency of electromagnetic fields, that seat in that medium. When two…
Mario J. PinheiroFeb 22, 2015
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United Nations Human Space Technology Initiative (HSTI)
The Human Space Technology Initiative was launched in 2010 within the framework of the United Nations Programme on Space Applications implemented by the Office for Outer Space Affairs of the United…
M. Ochiai, A. Niu, H. Steffens et al.Feb 21, 2015
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Approximate Mirror Symmetry in Heliospheric Plasma Flow Explains VOYAGER 2 Observations
The Sun and the undisturbed interstellar magnetic field and plasma velocity vectors (Bis,Vis) define a mirror symmetry plane of the flow at large heliospheric distances. We show that for the Bis…
Jolanta Grygorczuk, Andrzej Czechowski, Stan GrzedzielskiFeb 12, 2015
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Interpreting Ulysses data using inverse scattering theory: Oblique Alfvén waves
Solitary wave structures observed by the Ulysses spacecraft in the solar wind were analyzed using both inverse scattering theory as well as direct numerical integration of the derivative nonlinear…
Harry R. Wheeler, M. A. Reynolds, R. L. HamiltonFeb 6, 2015
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Dimensional Analysis of Thrusting by Electromagnetic Inertia
We investigate the so called Biefeld-Brown effect in terms of dimensional analysis and in the frame of classical electrodynamics.
Mario J. PinheiroFeb 6, 2015
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A Space Weather Information Service Based Upon Remote and In-Situ Measurements of Coronal Mass Ejections Heading for Earth
The Earth's magnetosphere is formed as a consequence of interaction between the planet's magnetic field and the solar wind, a continuous plasma stream from the Sun. A number of different…
Birgit Ritter, Arjan J. H. Meskers, Oscar Miles et al.Feb 6, 2015
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Ionospheric inversion of the Venus Express radio occultation data observed by Shanghai 25 m and New Norcia 35 m antennas
Electron density profiles of the Venus' ionosphere are inverted from the Venus Express (VEX) one-way open-loop radio occultation experiments carried out by Shanghai 25 m antenna from November…
Su-jun Zhang, Nian-chuan Jian, Jin-ling Li et al.Feb 5, 2015
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Circuit Level Modeling of Extra Combinational Delays in SRAM FPGAs Due to Transient Ionizing Radiation
This paper presents a novel circuit level model that explains and confirms the extra combinational delays in a SRAM-FPGA (Virtex-5) due to radiation, which matches the experimental results by proton…
Mostafa Darvishi, Yves Audet, Yves Blaquière et al.Feb 5, 2015
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A Comparison of Radial Intensity Profiles of Termination Shock Particles and Anomalous Cosmic Rays in the Outer North-South Heliosheaths Using CRS data from V1 and V2
Using data from the Voyager 1 and 2 CRS telescopes available on the web through the end of 2014 we have studied the intensity variations of termination shock H nuclei and anomalous cosmic ray H and…
W. R. Webber, D. S. IntriligatorFeb 4, 2015
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Hot flow anomaly remnant in the far geotail?
A hot flow anomaly (HFA) like event was observed by the Solar TErrestrial RElations Observatory (STEREO) in the night side magnetosheath in the far tail in February-March 2007. The magnetic signature…
Gábor Facskó, Andrea Opitz, Benoit Lavraud et al.Feb 4, 2015
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Diffusion coefficient and radial gradient of galactic cosmic rays
We present the temporal changes of the diffusion coefficient K of galactic cosmic rays (GCRs) at the Earth orbit calculated based on the experimental data using two different methods. The first…
Renata ModzelewskaFeb 3, 2015
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Ion kinetic energy conservation and magnetic field strength constancy in multi-fluid solar wind Alfvénic turbulence
We investigate properties of the plasma fluid motion in the large amplitude low frequency fluctuations of highly Alfvénic fast solar wind. We show that protons locally conserve total kinetic energy…
L. Matteini, T. S. Horbury, F. Pantellini et al.Jan 4, 2015
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The role of the Hall effect in the global structure and dynamics of planetary magnetospheres: Ganymede as a case study
We present high resolution Hall MHD simulations of Ganymede's magnetosphere demonstrating that Hall electric fields in ion-scale magnetic reconnection layers have significant global effects not…
John C. Dorelli, Alex Glocer, Glyn Collinson et al.Jan 2, 2015
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Do Märzke-Wheeler effects influence on measured data in nature?
We wonder whether Märzke-Wheeler effects influence on measured data in nature. Through a formula developed in this letter for the calculation of the Märzke-Wheeler map of a general accelerated…
Juan Manuel BurgosDec 21, 2014
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A Modified Version of Taylor's Hypothesis for Solar Probe Plus Observations
The Solar Probe Plus (SPP) spacecraft will explore the near-Sun environment, reaching heliocentric distances less than 10 R. Near Earth, spacecraft measurements of fluctuating velocities…
Kristopher G. Klein, Jean C. Perez, Daniel Verscharen et al.Dec 11, 2014
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Wave-particle interactions with parallel whistler waves: nonlinear and time-dependent effects revealed by Particle-in-Cell simulations
We present a self-consistent Particle-in-Cell simulation of the resonant interactions between anisotropic energetic electrons and a population of whistler waves, with parameters relevant to the…
Enrico Camporeale, Gaetano ZimbardoDec 10, 2014
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Whether duration of the recovery phase of magnetic storm depends on the development rate of storm at its main phase?
We compare dependences between the storm development rate |Dstmin|/ΔT (ΔT is the durations of main phase) and the duration of recovery phase of magnetic storms generated by three various types…
Yuri I. YermolaevDec 7, 2014
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The Streaming Limit of Solar Energetic-Particle Intensities
As solar energetic particles (SEPs) stream outward along the interplanetary magnetic field after acceleration by shock waves near the Sun, their intensities are limited by scattering against…
Donald V. Reames, Chee K. NgDec 6, 2014
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Resonant and non-resonant whistlers-particle interaction in the radiation belts
We study the wave-particle interactions between lower band chorus whistlers and an anisotropic tenuous population of relativistic electrons. We present the first direct comparison of first-principle…
Enrico CamporealeDec 5, 2014
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What causes geomagnetic activity during sunspot minimum
The average geomagnetic activity during sunspot minimum has been continuously decreasing in the last four cycles. The geomagnetic activity is caused by both interplanetary disturbances - coronal mass…
Boian Kirov, Simeon Asenovski, Katya Georgieva et al.Dec 2, 2014
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On forbidden high-energy electrons as a source of background in X-ray and gamma-ray observations
The study is devoted to a problem of electron-induced contaminant to X-ray and gamma-ray astrophysical measurements on board low-orbiting satellites. We analyzed enhancements of electron fluxes in…
Alla V. Suvorova, Alexei V. DmitrievDec 1, 2014
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Windsock memory conditioned RAM (Co-Ram) pressure effect: forced reconnection in the Earth's magnetotail
Magnetic reconnection (MR) is a key physical concept explaining the addition of magnetic flux to the magnetotail and closed flux lines back-motion to the dayside magnetosphere. This scenario…
Z. Vörös, G. Facskó, M. Khodachenko et al.Nov 28, 2014
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Reconnection outflow generated turbulence in the solar wind
Petschek-type time-dependent reconnection (TDR) and quasi-stationary reconnection (QSR) models are considered to understand reconnection outflow structures and the features of the associated locally…
Z. Vörös, Y. L. Sasunov, V. S. Semenov et al.Nov 28, 2014
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