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First observations of energetic particles near comet Halley

  • Comet Halley
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Abstract

The TÜNDE-M energetic particle instrument aboard the Vega 1 spacecraft detected intense fluxes of energetic (≥40 keV) ions in the vicinity of comet Halley, starting at a distance of 107 km from closest approach. Three regions of differing ion characteristics have been identified. An outer region, several million kilometers in extent, contains pick-up ions in the solar wind. A second region, inside the bow shock (several hundred thousand kilometres in extent), contains the most intense fluxes, whereas the innermost region (several tens of thousands of kilometres) is characterized by lower intensities and sharp spikes near closest approach (∼8,900 km from the nucleus).

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Authors and Affiliations

  1. Central Research Institute for Physics, PO Box 49, H-1525, Budapest, 114, Hungary

    A. J. Somogyi, K. Szegő, L. Szabó, Gy. Kozma, J. Erő Jr, I. T. -Szücs, J. Windberg, T. E. Cravens, G. Erdõs, M. Faragó, T. I. Gombosi, K. Kecskeméty, T. Kovács Jr, A. Kondor, L. Lohonyai, I. Szentpétery, A. Szepesváry, M. Tátrallyay, A. Varga & A. Zarándy

  2. Space Research Institute, 117810, Moscow, GSP-7, USSR

    K. I. Gringauz, A. P. Remizov, I. N. Klimenko, M. I. Verigin, A. Dyachkov & G. A. Vladimirova

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

    E. Keppler & A. K. Richter

  4. State University, Moscow, USSR

    Y. I. Logachev & V. G. Stolpovskii

  5. Space Science Department, ESA/ESTEC, Noordwijk, The Netherlands

    R. Marsden & K. P. Wenzel

  6. Technical University, Budapest, Hungary

    R. Redl & J. Szabó

Authors
  1. A. J. Somogyi
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  2. K. I. Gringauz
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  3. K. Szegő
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  4. L. Szabó
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  5. Gy. Kozma
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  6. A. P. Remizov
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  7. J. Erő Jr
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  8. I. N. Klimenko
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  9. I. T. -Szücs
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  10. M. I. Verigin
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  11. J. Windberg
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  12. T. E. Cravens
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  13. A. Dyachkov
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  14. G. Erdõs
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  15. M. Faragó
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  16. T. I. Gombosi
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  17. K. Kecskeméty
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  18. E. Keppler
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  19. T. Kovács Jr
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  20. A. Kondor
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  21. Y. I. Logachev
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  22. L. Lohonyai
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  23. R. Marsden
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  24. R. Redl
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  25. A. K. Richter
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  26. V. G. Stolpovskii
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  27. J. Szabó
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  28. I. Szentpétery
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  29. A. Szepesváry
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  30. M. Tátrallyay
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  31. A. Varga
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  32. G. A. Vladimirova
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  33. K. P. Wenzel
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  34. A. Zarándy
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Somogyi, A., Gringauz, K., Szegő, K. et al. First observations of energetic particles near comet Halley. Nature 321 (Suppl 6067), 285–288 (1986). https://doi.org/10.1038/321285a0

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  • DOI: https://doi.org/10.1038/321285a0

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