Comet Halley | Published:

Mass spectra of heavy ions near comet Halley

Naturevolume 321pages335336 (1986) | Download Citation



The heavy-ion analyser, RPA2-PICCA, aboard the Giotto spacecraft, detected the first cometary ions at a distance of 1.05×106 km from the nucleus of comet Halley. In the inner coma the major ions identified are associated with the H2O, CO and CO2 groups. Ions of larger atomic mass unit are also present, corresponding possibly to various hydrocarbons, heavy metals of the iron-group or to sulphur compounds.

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  1. 1

    Rème, H. et al. Eur. Space Ag. spec. Publ. 1077, 33–52 (1986).

  2. 2

    Mendis, D. A., Houpis, H. L. F. & Marconi, M. L. Fundam. Cosmic Phys. 10, 1–380 (1985).

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  1. Max-Planck-Institut für Aeronomie, D-3411, Katlenburg-Lindau, 3, FRG

    • A. Korth
    • , A. K. Richter
    •  & A. Loidl
  2. Space Sciences Laboratory, University of California, Berkeley, California, 94720, USA

    • K. A. Anderson
    • , C. W. Carlson
    • , D. W. Curtis
    •  & R. P. Lin
  3. Centre d'Etude Spatiale des Rayonnements, CNRS-Paul Sabatier University, F-31029, Toulouse, France

    • H. Rème
    • , J. A. Sauvaud
    • , C. d'Uston
    • , F. Cotin
    •  & A. Cros
  4. Department of Electrical Engineering and Computer Sciences, University of California, San Diego, California, 92093, USA

    • D. A. Mendis


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