Subjects

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).

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1.

    , & Astrophys. J. 289, 807–819 (1985).

  2. 2.

    Geophys. Res. Lett. 13, 275–278 (1986).

  3. 3.

    et al. Science 232, 366–369 (1986).

  4. 4.

    , , & Geophys. Res. Lett. 13, 85–88 (1986).

  5. 5.

    & Max-Planck-Institut für Aeronomie Preprint (March, 1986).

  6. 6.

    & Soviet Phys. JETP (in the press).

  7. 7.

    et al. Nature 321, 259–262 (1986).

  8. 8.

    et al. Central Res. Inst. Phys., Budapest, Preprint No. KFKI-1986-02 (1986).

  9. 9.

    et al. in Cometary Exploration Vol. 3 (ed. Gombosi, T. I.) 351–360 (Central Research Institute for Physics, Budapest, 1983).

  10. 10.

    , , & Nucl. Instrum. Meth. 154, 291–294 (1978).

  11. 11.

    et al. Nature 321, 269–271 (1986).

  12. 12.

    , , , & Science 232, 361–365 (1986).

  13. 13.

    et al. Geophys. Res. Lett. 13, 251–254 (1986).

  14. 14.

    et al. Nature 321, 290–291 (1986).

  15. 15.

    , , , & Nature 321, 288–299 (1986).

Download references

Author information

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. Search for A. J. Somogyi in:

  2. Search for K. I. Gringauz in:

  3. Search for K. Szegő in:

  4. Search for L. Szabó in:

  5. Search for Gy. Kozma in:

  6. Search for A. P. Remizov in:

  7. Search for J. Erő in:

  8. Search for I. N. Klimenko in:

  9. Search for I. T. -Szücs in:

  10. Search for M. I. Verigin in:

  11. Search for J. Windberg in:

  12. Search for T. E. Cravens in:

  13. Search for A. Dyachkov in:

  14. Search for G. Erdõs in:

  15. Search for M. Faragó in:

  16. Search for T. I. Gombosi in:

  17. Search for K. Kecskeméty in:

  18. Search for E. Keppler in:

  19. Search for T. Kovács in:

  20. Search for A. Kondor in:

  21. Search for Y. I. Logachev in:

  22. Search for L. Lohonyai in:

  23. Search for R. Marsden in:

  24. Search for R. Redl in:

  25. Search for A. K. Richter in:

  26. Search for V. G. Stolpovskii in:

  27. Search for J. Szabó in:

  28. Search for I. Szentpétery in:

  29. Search for A. Szepesváry in:

  30. Search for M. Tátrallyay in:

  31. Search for A. Varga in:

  32. Search for G. A. Vladimirova in:

  33. Search for K. P. Wenzel in:

  34. Search for A. Zarándy in:

About this article

Publication history

Received

Accepted

Published

DOI

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

Further reading

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.