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Outflow Velocities at the Base of a Polar Coronal Hole During the 1998 Total Eclipse

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Abstract

Polar coronal holes represent the most convincing site from which the high-speed solar wind originates. Here we report high-accuracy Doppler shifts measured in the O VI (1037.6 Å) line obtained by SUMER on SOHO inside an interplume region within the south polar coronal hole. We infer limits on the outflow velocity and draw hints about the flow geometry.

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Authors and Affiliations

  1. I.A.S., Université Paris XI-CNRS, Bât 121, 91405, Orsay Cedex, France

    S. Patsourakos & J.-C. Vial

  2. Observatoire Royal De Belgique, Avenue Circulaire 3, 1180, Bruxelles, Belgium

    J.-R. Gabryl

  3. I.A.P., CNRS, 98 Bis Bd Arago, 75014, Paris, France

    S. Koutchmy

  4. Max-Planck-Institut fur Aeronomie, D-37189, Katlenburg-Lindau, Germany

    U. Schühle

Authors
  1. S. Patsourakos
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  2. J.-C. Vial
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  3. J.-R. Gabryl
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  4. S. Koutchmy
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  5. U. Schühle
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Patsourakos, S., Vial, JC., Gabryl, JR. et al. Outflow Velocities at the Base of a Polar Coronal Hole During the 1998 Total Eclipse. Space Science Reviews 87, 291–294 (1999). https://doi.org/10.1023/A:1005133525557

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  • DOI: https://doi.org/10.1023/A:1005133525557

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