Oxygen isotope anomalies of the sun and the original environment of the solar system

Jeong Eun Lee, Edwin A. Bergin, James R. Lyons

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

We present results from a model of oxygen isotopic anomaly production through selective photodissociation of CO within the collapsing proto-solar cloud. Our model produces a proto-Sun with a wide range of Δ17O values depending on the intensity of the ultraviolet radiation field. Dramatically different results from two recent solar wind oxygen isotope measurements indicate that a variety of compositions remain possible for the solar oxygen isotope composition. However, constrained by other measurements from comets and meteorites, our models imply the birth of the Sun in a stellar cluster with an enhanced radiation field and are therefore consistent with a supernova source for 60Fe in meteorites.

Original languageEnglish (US)
Pages (from-to)1351-1362
Number of pages12
JournalMeteoritics and Planetary Science
Volume43
Issue number8
DOIs
StatePublished - Aug 2008
Externally publishedYes

ASJC Scopus subject areas

  • Geophysics
  • Space and Planetary Science

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