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Solar wind and cosmic ray irradiation of grains and ices - application to erosion and synthesis of organic compounds in the solar systemSolar wind and cosmic and cosmic ray irradiation of grains induces physical and chemical effects including their erosion and the synthesis of molecular compounds within the implanted layers. The experiments performed with H2O ice implanted by keV ions are presented. The ion implantation is intended to simulate the irradiation of comets, ring grains, and satellites of outer planets, either by the primitive solar particles or by contemporary solar wind (SW) or solar cosmic rays (SCR) fluxes. The detection of molecules was obtained through in-situ infrared spectroscopy. A model is proposed for the formation of organic matter within icy solar system bodies which is in agreement with experimental results of erosion rates. The organic molecules, frozen-in within the icy mantles of the grains present in the protosolar nebula, would originate from their primitive irradiation. Such an irradiation would have taken place during an early stage of the proto-sun, when both the SW and SCR particles were more intense by orders of magnitude.
Document ID
19850007328
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Rocard, F.
(Paris XI Univ. Orsay, France)
Benit, J.
(Paris XI Univ. Orsay, France)
Meunier, J. P.
(Paris XI Univ. Orsay, France)
Bibring, R.
(Paris XI Univ. Orsay, France)
Vassent, B.
(Paris XI Univ. Orsay, France)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Publication Information
Publication: Lunar and Planetary Institute The 47th Ann. Meteoritical Soc. Meeting
Subject Category
Solar Physics
Accession Number
85N15637
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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