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The unexpected origin of plasmaspheric hiss from discrete chorus emissions

Author

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  • Jacob Bortnik

    (University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095, USA)

  • Richard M. Thorne

    (University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095, USA)

  • Nigel P. Meredith

    (British Antarctic Survey, Natural Environment Research Council, Madingley Road, Cambridge, CB3 0ET, UK)

Abstract

Plasmaspheric chorus line Plasmaspheric hiss is a type of electromagnetic wave found in the dense plasma region — the plasmasphere — that encircles the Earth. This hiss is a dominant factor in controlling the two-zone structure of the Van Allen radiation belts, and since it removes high-energy electrons from the plasmasphere, it plays a pivotal role in reducing the radiation hazards to satellites and humans in space. Many theories have been proposed to explain the origin of the hiss, but none have stood the test of time. Bortnik et al. have used data from the CRRES satellite to develop a new model that explains hiss as a derivative of another wave type called chorus. Previously thought to be unrelated to hiss, chorus can propagate into the plasmasphere and subsequently evolve into hiss.

Suggested Citation

  • Jacob Bortnik & Richard M. Thorne & Nigel P. Meredith, 2008. "The unexpected origin of plasmaspheric hiss from discrete chorus emissions," Nature, Nature, vol. 452(7183), pages 62-66, March.
    • Handle: RePEc:nat:nature:v:452:y:2008:i:7183:d:10.1038_nature06741
    DOI: 10.1038/nature06741
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    Cited by:

    1. Xiongdong Yu & Zhigang Yuan & Jiang Yu & Dedong Wang & Dan Deng & H. O. Funsten, 2023. "Diffuse auroral precipitation driven by lower-band chorus second harmonics," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Haruhiko Saitoh & Masaki Nishiura & Naoki Kenmochi & Zensho Yoshida, 2024. "Experimental study on chorus emission in an artificial magnetosphere," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    3. Shangchun Teng & Yifan Wu & Yuki Harada & Jacob Bortnik & Fulvio Zonca & Liu Chen & Xin Tao, 2023. "Whistler-mode chorus waves at Mars," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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