Penetration of the solar wind after dissipation of the solar nebula: Origin of Venusian Ar by off-disk implantation of the solar wind

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概要

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• Implantation of the ancent solar wind is a possible noble gas source for Venus and gas-rich meteorites. During the stage of planetary accretion, dust grains re-emitted by planetesimal collisions could be targets of the solar wind implantation. The present study shows that such off-disk implantation can play an important role in noble gas capture; our results explain not only the ^<36>Ar amount in the Venusian atmosphere but also the fact that the ^<36>Ar abundance in Venus is 70 times as much as that in the Earth, assuming that gravitational scattering by the proto-Venus should enhance the orbital inclination of target materials. This mechanism may also have played a role in the origin of gas-rich meteorites.

• 国立極地研究所の論文

著者

• Sasaki Sho

  Lunar And Planetary Laboratory University Of Arizona

関連論文

• Chapter 1 Noble Gas Constraints on the Early History of the Earth : Part I Chronology of the Solar System : Origin of the Solar System
• Penetration of the solar wind after dissipation of the solar nebula: Origin of Venusian Ar by off-disk implantation of the solar wind

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