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Pickup protons in the heliosphere

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Abstract

We calculate the conditions of pickup protons inside the termination shock. Outside 50 AU the partial pressure of pickup protons is greater than the magnetic pressure by a factor of > 10, and greater than the partial pressure of solar wind protons by a factor of > 100. Thus, pickup protons have a significant dynamical influence on the structures of the solar wind in the outer heliosphere.

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Authors and Affiliations

  1. Catholic University of America, 20064, Washington, DC, USA

    Y. C. Whang

  2. NASA Goddard Space Flight Center, 20771, Greenbelt, MD, USA

    L. F. Burlaga

  3. Bartol Research Institute, University of Delaware, 19716, Newwark, DE, USA

    N. F. Ness

Authors
  1. Y. C. Whang
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  2. L. F. Burlaga
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  3. N. F. Ness
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Whang, Y.C., Burlaga, L.F. & Ness, N.F. Pickup protons in the heliosphere. Space Sci Rev 78, 393–398 (1996). https://doi.org/10.1007/BF00170825

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  • DOI: https://doi.org/10.1007/BF00170825

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