Lunar ice: Can its origin be determined?

  • A. A. Berezhnoi
  • B. A. Klumov
Miscellaneous

Abstract

The comet hypothesis of the origin of lunar ice, which was recently discovered in the polar regions of the moon by Lunar Prospector, is examined. It is shown that a comet impact produces a temporary atmosphere whose volatile component accumulates essentially completely in cold traps — the permanently shadowed regions of the Moon. The condensation of volatile compounds leads to the formation of ice with a definite chemical and isotopic composition, which contains important information about the composition of the comet. This hypothesis can be checked during the next lunar missions, and if confirmed, definite progress will have been made in understanding the nature of comets.

PACS numbers

96.20.Dt 

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References

  1. 1.
    K. Watson, B. C. Murray, and H. Brown, J. Geophys. Res. 66, 3033 (1961).ADSGoogle Scholar
  2. 2.
    T. I. Orlova and V. V. Svetsov, Earth, Moon, Planets 71, 255 (1995).ADSGoogle Scholar
  3. 3.
    S. Nozette, C. L. Lichtenberg, P. Spudis et al., Science 275, 1495 (1996).ADSGoogle Scholar
  4. 4.
  5. 5.
    J. R. Arnold, J. Geophys. Res. 84, 5659 (1979).ADSGoogle Scholar
  6. 6.
    T. Gehrels (Ed.), Hazards Due to Comets and Asteroids, Univ. of Arizona Press, 1994.Google Scholar
  7. 7.
    K. R. Housen and R. M. Schmidt, J. Spacecr. Rockets 32, 162 (1995).ADSGoogle Scholar
  8. 8.
    J. D. O’Keefe and T. J. Ahrens, J. Geophys. Res. 87, 6668 (1982).ADSGoogle Scholar
  9. 9.
    M. J. Cintala, J. Geophys. Res. 97, 947 (1992).ADSGoogle Scholar
  10. 10.
    A. A. Berezhnoi, B. A. Klumov, V. E. Fortov, and V. V. Shevchenko, JETP Lett. 63, 405 (1996).CrossRefADSGoogle Scholar
  11. 11.
    E. Anders, N. Grevesse, Geochim. Cosmochim. Acta 53, 197 (1989).CrossRefADSGoogle Scholar
  12. 12.
    R. V. Morris, Proceedings of the Lunar and Planetary Science Conference, 1978, p. 1801.Google Scholar
  13. 13.
    R. Meier et al., Science 279, 1707 (1998).ADSGoogle Scholar

Copyright information

© MAIK "Nauka/Interperiodica" 1998

Authors and Affiliations

  • A. A. Berezhnoi
    • 1
  • B. A. Klumov
    • 2
  1. 1.P. K. Shternberg State Astronomy InstituteMoscowRussia
  2. 2.Institute of the Geosphere DynamicsMoscowRussia

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