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Title: 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.
Authors:
;  [1]
  1. Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA (United States)
Publication Date:
OSTI Identifier:
22518950
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 806; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CORRELATIONS; MARS PLANET; METEORITES; MIXING RATIO; PLANETARY ATMOSPHERES; PROTOPLANETS; SATELLITE ATMOSPHERES; SATELLITES; SOLAR SYSTEM; SOLAR WIND; SUN; XENON