XENON IN THE PROTOPLANETARY DISK (PPD-Xe)
Relationships among solar system Xe components as observed in the solar wind, in planetary atmospheres, and in meteorites are investigated using isotopic correlations. The term PPD-Xe is used for components inferred to have been present in the molecular cloud material that formed the protoplanetary disk (PPD). The evidence of the lack of simple relationships between terrestrial atmospheric Xe and solar or meteoritic components is confirmed. Xe isotopic correlations indicate a heterogeneous PPD composition with variable mixing ratios of the nucleosynthetic component Xe-HL. Solar Xe represents a bulk PPD component, and the isotopic abundances did not change from the time of incorporation into the interior of Mars through times of regolith implantations to the present.
- OSTI ID:
- 22518950
- Journal Information:
- Astrophysical Journal Letters, Vol. 806, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 2041-8205
- Country of Publication:
- United States
- Language:
- English
Primordial heavy noble gases in the pristine Paris carbonaceous chondrite
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journal | November 2018 |
Lunar Xenon and the Origin of the Indigenous Component
|
journal | September 2019 |
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