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    Interplanetary Magnetic Field Connection to the L1 Lagrangian Orbit During Upstream Energetic Ion Events
    AGUFM (2002)
    E. C. RoelofC. W. SmithN. F. NessR. M. SkougR. L. Tokar
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    Keywords:
    Orbit (dynamics)
    Topics:
    Solar and Space Plasma Dynamics
    Ionosphere and magnetosphere dynamics
    Astro and Planetary Science
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    C. W. SmithM. A. LeeJeffrey A. TesseinVasiliy S. VorotnikovD. Sodaitis
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    AGU Spring Meeting Abstracts (2002)
    D. LarioE. C. RoelofD. B. Reisenfeld
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    D. RuffoloP. TooprakaiM. RujiwarodomT. KhumlumlertJ. W. Bieber
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    Particles upstream of the pre‐dawn bow shock: ISEE‐3 observations
    Geophysical Research Letters (1985)
    T. TerasawaM. ScholerF. M. IpavichD. HovestadtB. Klecker
    The first observations of energetic ions (≳ 30 keV) in the region upstream of the pre‐dawn bow shock (0 ≳ X ≳ ‐ 60 Re) are presented. The intensity in this region is controlled by the direction of the interplanetary magnetic field (IMF) and is maximized when the IMF is around the spiral direction. The particle distributions are highly anisotropic with the anisotropy directed perpendicular to the magnetic field. In the E × B frame this perpendicular anisotropy is conserved and it is argued that the distribution is pancake‐like. This indicates that the energetic particles in the pre‐dawn upstream region have their origin in the near‐earth upstream region, from where they are convected by the solar wind perpendicular to the magnetic field. It is therefore concluded that acceleration occurs mainly near the nose of the bow shock and particle acceleration at the distant bow shock is weak.
    Bow wave
    Magnetosheath
    Citations (4)
    Control of Energetic Particle Flows by the Interplanetary Magnetic Field Structure
    R. ReinhardV. FormisanoK. P. WenzelV. Domingo
    Particle (ecology)
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    The Theory of Particle Acceleration at Coronal/Interplanetary Shocks
    AGU Fall Meeting Abstracts (2001)
    M. A. Lee
    Particle (ecology)
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    Particle Acceleration at Interplanetary Shocks
    Space sciences series of ISSI (2007)
    G. P. ZankGang LiO. P. Verkhoglyadova
    Solar energetic particles
    Particle (ecology)
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    Possible acceleration of charged particles through the reconnection of magnetic field lines in interplanetary space
    Geophysical Research Letters (1974)
    E. H. LevyF. M. IpavichG. Gloeckler
    Prominent intensity spikes in the flux of protons and alphas with less than 0.5 MeV per charge have been observed in the region several hours behind an interplanetary shock front. The small spatial scale of these events and the high anisotropy of the particle flux suggest local acceleration. The spectra of the particles, which are cut off at equal energy per charge, suggest acceleration through an electric field. We examine the possibility that these events have their origin in active magnetic neutral sheets in the shocked solar wind.
    Solar energetic particles
    Interplanetary medium
    Heliosphere
    Citations (10)