Comet Halley | Published:

Comet Halley–solar wind interaction from electron measurements aboard Giotto

Nature volume 321, pages 349352 (15 May 1986) | Download Citation



Measurements made by the three-dimensional electron spectrometer of the RPA-Copernic experiment aboard the Giotto spacecraft give a preliminary description of the complex interaction between comet Halley and the solar wind. As Giotto approached the comet, it traversed several regions of differing plasma characteristics: a large (107 km) upstream region, a foreshock, a bow wave with its apex at 4×105 km, a transition region, a region permanently and strongly contaminated by cometary ions, a collisionopause at a sub-solar distance of 5−6×104 km, and various inner regions up to the inner coma, including a region of depleted hot plasma.

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  1. Centre d'Etude Spatiale des Rayonnements, CNRS-Toulouse University, 31029 Toulouse Cedex, France

    • H. Rème
    • , J. A. Sauvaud
    • , C. d'Uston
    • , F. Cotin
    •  & A. Cros
  2. Space Sciences Laboratory, University of California, Berkeley, California 94720, USA

    • K. A. Anderson
    • , C. W. Carlson
    • , D. W. Curtis
    •  & R. P. Lin
  3. Department of Electrical Engineering and Computer Sciences, University of California, San Diego, California 92093, USA

    • D. A. Mendis
  4. Max-Planck-Institut für Aeronomie, PO Box 20, D-3411 Katlenburg-Lindau, FRG

    • A. Korth
    •  & A. K. Richter


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