Results 21 to 30 of about 12,413,187 (395)

Which Parameter Controls Ring Current Electron Dynamics

Frontiers in Astronomy and Space Sciences, 2022
Predicting the electron population of Earth’s ring current during geomagnetic storms still remains a challenging task. In this work, we investigate the sensitivity of 10 keV ring current electrons to different driving processes, parameterised by the Kp ...
Bernhard Haas, Bernhard Haas, Yuri Y. Shprits, Yuri Y. Shprits, Yuri Y. Shprits, Hayley J. Allison, Michael Wutzig, Dedong Wang   +7 more
doaj   +1 more source

Driving ionospheric outflows and magnetospheric O+ energy density with Alfvén waves

Geophysical Research Letters, 2016
We show how dispersive Alfvén waves observed in the inner magnetosphere during geomagnetic storms can extract O+ ions from the topside ionosphere and accelerate these ions to energies exceeding 50 keV in the equatorial plane.
C. C. Chaston, J. W. Bonnell, G. D. Reeves, R. M. Skoug   +3 more
doaj   +1 more source

Ring Current Decay

Journal of geomagnetism and geoelectricity, 1991
The terrestrial ring current decays dominantly by charge exchange but Coulomb collisions and wave-particle interactions are also important processes in the overall decay and produce interesting thermal plasma effects. Charge exchange results in energetic neutral atom precipitation over a broad region; Coulomb collisions and wave-particle interactions ...
J. U. KOZYRA, A. F. NAGY
openaire   +2 more sources

Evolutions of equatorial ring current ions during a magnetic storm

Earth and Planetary Physics, 2020
In this paper, we present evolutions of the phase space density (PSD) spectra of ring current (RC) ions based on observations made by Van Allen Probe B during a geomagnetic storm on 23–24 August 2016.
Zheng Huang, ZhiGang Yuan, XiongDong Yu
doaj   +1 more source

Charge exchange contribution to the decay of the ring current, measured by energetic neutral atoms (ENAs) [PDF]

, 2001
In this paper we calculate the contribution of charge exchange to the decay of the ring current. Past works have suggested that charge exchange of ring current protons is primarily responsible for the decay of the ring current during the late recovery ...
Henderson, M. G., Jorgensen, A. M., Reeves, G. D., Roelof, E. C., Spence, Harlan E.   +4 more
core   +2 more sources

Radial and local time structure of the Saturnian ring current, revealed by Cassini

, 2017
We analyze particle and magnetic field data obtained between July 2004 and December 2013 in the equatorial magnetosphere of Saturn, by the Cassini spacecraft.
N. Sergis, C. Jackman, M. Thomsen, S. Krimigis, D. Mitchell, D. Hamilton, M. Dougherty, N. Krupp, R. J. Wilson   +8 more
semanticscholar   +1 more source

Quantifying the global solar wind-magnetosphere interaction with the Solar-Terrestrial Observer for the Response of the Magnetosphere (STORM) mission concept

Frontiers in Astronomy and Space Sciences, 2023
Much of what we know about the solar wind’s interaction with the Earth’s magnetosphere has been gained from isolated in-situ measurements by single or multiple spacecraft.
David G. Sibeck, Kyle R. Murphy, Kyle R. Murphy, F. Scott Porter, Hyunju K. Connor, Brian M. Walsh, Kip D. Kuntz, Eftyhia Zesta, Phil Valek, Charles L. Baker, Jerry Goldstein, Harald Frey, Syau-Yun Hsieh, Pontus C. Brandt, Roman Gomez, Gina A. DiBraccio, Shingo Kameda, Vivek Dwivedi, Michael E. Purucker, Michael Shoemaker, Steven M. Petrinec, Homayon Aryan, Ravindra T. Desai, Michael G. Henderson, Gonzalo Cucho-Padin, Gonzalo Cucho-Padin, W. Douglas Cramer   +26 more
doaj   +1 more source

Ring currents in azulene [PDF]

Chemical Physics Letters, 2009
We propose a self consistent polarisable ion tight binding theory for the study of push–pull processes in aromatic molecules. We find that the method quantitatively reproduces ab initio calculations of dipole moments and polarisability. We apply the scheme in a simulation which solves the time dependent Schrodinger equation to follow the relaxation of ...
Paxton, Anthony, Todorov, T.N.b, Elena, A.M.b   +2 more
openaire   +2 more sources

Space Weather Effects Produced by the Ring Current Particles

, 2017
One of the definitions of space weather describes it as the time-varying space environment that may be hazardous to technological systems in space and/or on the ground and/or endanger human health or life.
N. Ganushkina, Allison Jaynes, M. Liemohn   +2 more
semanticscholar   +1 more source

Ring current particle distributions derived from ring current magnetic field measurements [PDF]

Journal of Geophysical Research, 1968
Ring current particle energy density distribution for symmetric portion of magnetic storm derived from current magnetic field profile ...
R. A. Hoffman, L. J. Cahill
openaire   +1 more source