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

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

doi:10.1111/j.1945-5100.2008.tb00702.x

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 journal › Article › peer-review

40 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 language	English (US)
Pages (from-to)	1351-1362
Number of pages	12
Journal	Meteoritics and Planetary Science
Volume	43
Issue number	8
DOIs	https://doi.org/10.1111/j.1945-5100.2008.tb00702.x
State	Published - Aug 2008
Externally published	Yes

ASJC Scopus subject areas

Geophysics
Space and Planetary Science

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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.",

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AB - 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.

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

Abstract

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