Search Results - (Author, Cooperation:V. Angelopoulos)
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1Latest Papers from Table of Contents or Articles in PressO. Agapitov, J. F. Drake, I. Vasko, F. S. Mozer, A. Artemyev, V. Krasnoselskikh, V. Angelopoulos, J. Wygant, G. D. Reeves
Wiley-Blackwell
Published 2018Staff ViewPublication Date: 2018-03-06Publisher: Wiley-BlackwellPrint ISSN: 0094-8276Electronic ISSN: 1944-8007Topics: GeosciencesPhysicsPublished by: -
2Latest Papers from Table of Contents or Articles in PressH. Hietala, T. D. Phan, V. Angelopoulos, M. Oieroset, M. O. Archer, T. Karlsson, F. Plaschke
Wiley-Blackwell
Published 2018Staff ViewPublication Date: 2018-02-03Publisher: Wiley-BlackwellPrint ISSN: 0094-8276Electronic ISSN: 1944-8007Topics: GeosciencesPhysicsPublished by: -
3Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-03-13Publisher: Wiley-BlackwellPrint ISSN: 0148-0227Topics: GeosciencesPhysicsPublished by: -
4Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-01-17Publisher: Wiley-BlackwellPrint ISSN: 0148-0227Topics: GeosciencesPhysicsPublished by: -
5Latest Papers from Table of Contents or Articles in PressY. Nishimura, J. Bortnik, W. Li, V. Angelopoulos, E. F. Donovan, E. L. Spanswick
Wiley-Blackwell
Published 2018Staff ViewPublication Date: 2018-03-13Publisher: Wiley-BlackwellPrint ISSN: 0148-0227Topics: GeosciencesPhysicsPublished by: -
6Latest Papers from Table of Contents or Articles in PressV. Angelopoulos ; A. Runov ; X. Z. Zhou ; D. L. Turner ; S. A. Kiehas ; S. S. Li ; I. Shinohara
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-09-28Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
7Articles: DFG German National LicensesStaff View
ISSN: 1089-7674Source: AIP Digital ArchiveTopics: PhysicsNotes: It has been proposed recently that a description of the magnetosphere as a system in a state of self-organized criticality would be fruitful for understanding (and predicting) the global response to solar wind input. In this paper it is shown that the proposed description fits the characteristics of magnetotail plasma flows and their variability. According to observations, the magnetotail is in a bi-modal state: nearly stagnant, except when driven turbulent by transport-efficient fast flows. The distributions of flows are in agreement with sporadic (intermittent) variability in the magnetotail. The variability may resemble hydrodynamic turbulence around a jet. The presence of turbulence alters the conductivity and the mass/momentum diffusion properties across the plasma sheet and may permit cross-scale coupling of localized jets into a global perturbation. Bursty-flow-driven turbulence is a physical process that may have an important role to play in the establishment of a state of self-organized criticality. © 1999 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 0273-1177Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPhysicsType of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesSarafopoulos, D. V. ; Sarris, E. T. ; Angelopoulos, V. ; Yamamoto, T. ; Kokubun, S.
Springer
Published 1997Staff ViewISSN: 0992-7689Source: Springer Online Journal Archives 1860-2000Topics: GeosciencesPhysicsNotes: Abstract We have analyzed the onsets of energetic particle bursts detected by the ICS and STICS sensors of the EPIC instrument on board the GEOTAIL spacecraft in the deep magnetotail (i.e., at distances greater than 180 RK). Such bursts are commonly observed at the plasma-sheet boundary layer (PSBL) and are highly collimated along the magnetic field. The bursts display a normal velocity dispersion (i.e., the higher-speed particles are seen first, while the progressively lower speed particles are seen later) when observed upon entry of the spacecraft from the magnetotail lobes into the plasma sheet. Upon exit from the plasma sheet a reverse velocity dispersion is observed (i.e., lower-speed particles disappear first and higher-speed particles disappear last). Three major findings are as follows. First, the tailward-jetting energetic particle populations of the distant-tail plasma sheet display an energy layering: the energetic electrons stream along open PSBL field lines with peak fluxes at the lobes. Energetic protons occupy the next layer, and as the spacecraft moves towards the neutral sheet progressively decreasing energies are encountered systematically. These plasma-sheet layers display spatial symmetry, with the plane of symmetry the neutral sheet. Second, if we consider the same energy level of energetic particles, then the H ‘ layer is confined within that of the energetic electron, the He++ layer is confined within that of the proton, and the oxygen layer is confined within the alpha particle layer. Third, whenever the energetic electrons show higher fluxes inside the plasma sheet as compared to those at the boundary layer, their angular distribution is isotropic irrespective of the Earthward or tailward character of fluxes, suggesting a closed field line topology.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesWalker, R. ; Terasawa, T. ; Christon, S.P. ; Angelopoulos, V. ; Hoshino, M. ; Lennartsson, W. ; Maezawa, K. ; Sibeck, D.G. ; Treumann, R.A. ; Williams, D.J. ; Zelenyi, L.
Springer
Published 1999Staff ViewISSN: 1572-9672Source: Springer Online Journal Archives 1860-2000Topics: PhysicsType of Medium: Electronic ResourceURL: