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Showing 1–4 of 4 results
Advanced filters: Author: Janet G. Luhmann Clear advanced filters

  • Magnetic reconnection dynamics in Venus’ magnetosphere are not well-known due to limited observations. Here, the authors show direct evidence for closed magnetic topology in Venus’ magnetotail and a link between the cold ion flow in the magnetotail and its direct magnetic connectivity to the ionosphere.

    • Shaosui Xu
    • David L. Mitchell
    • Moa Persson
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-9

  • The recent Voyager 2 measurements across the termination shock found that the shocked solar wind plasma contains only ∼20 per cent of the energy released by the termination shock, whereas energetic particles above ∼28 keV contain only ∼10 per cent. This paper reports the detection and mapping of energetic neutral atoms produced by charge exchange of suprathermal ions with interstellar neutrals. These termination shock-energized pickup ions contain the missing ∼70 per cent of the energy dissipated in the termination shock, and they dominate the pressure in the heliosheath.

    • Linghua Wang
    • Robert P. Lin
    • Janet G. Luhmann
    Research
    Nature
    Volume: 454, P: 81-83

  • Coronal mass ejections are large expulsions of plasma from the solar corona into space, and are drivers of major space weather effects. Here, the authors report observations of two successive ejections, whose interaction led to extremely enhanced magnetic fields and high solar wind speeds near 1 AU.

    • Ying D. Liu
    • Janet G. Luhmann
    • Antoinette B. Galvin
    Research
    Nature Communications
    Volume: 5, P: 1-8