Bursty synchrotron intensity variations of Jovian 6-cm radio emissions and Jupiter’s quasi-periodic polar activities

Authors

  • Yu-Qing Lou,

    Corresponding author
    1. Physics Department and Tsinghua Centre for Astrophysics (THCA), Tsinghua University, Beijing 100084, China
    2. National Astronomical Observatories, Chinese Academy of Sciences (CAS), A20, Datun Road, Beijing 100012, China
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  • Huagang Song,

    1. Xinjiang Astronomical Observatory, Chinese Academy of Sciences (CAS), Urumqi, Xinjiang 830011, China
    2. Graduate University of the Chinese Academy of Sciences (CAS), Beijing 100049, China
    3. Key Laboratory of Radio Astronomy, Chinese Academy of Sciences (CAS), Urumqi, Xinjiang 830011, China
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  • Yinyu Liu,

    1. Physics Department and Tsinghua Centre for Astrophysics (THCA), Tsinghua University, Beijing 100084, China
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  • Meng Yang

    1. Physics Department and Tsinghua Centre for Astrophysics (THCA), Tsinghua University, Beijing 100084, China
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E-mail: louyq@mail.tsinghua.edu.cn

ABSTRACT

With reference to Jupiter’s south polar quasi-periodic 40–50 min (QP-40) activities and the model scenario for global QP-40 magneto-inertial oscillations of the Jovian inner radiation belt (IRB), we validate relevant predictions and confirmations by amassing empirical evidence from Ulysses, Cassini, Chandra, Galileo, XMM–Newton and the Advanced Composition Explorer for Jupiter’s north polar QP-40 activities. We report ground 6-cm radio observations of Jupiter by the Urumqi 25-m telescope for synchrotron intensity bursty variations of the Jovian IRB and show their likely correlations with the recurrent arrival of high-speed solar winds at Jupiter.

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