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arXiv · 0803.0692

Oxygen isotope anomalies of the Sun and the original environment of the Solar system

Jeong-Eun Lee·Edwin A. Bergin·James R. Lyons
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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 Delta_17O 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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Jeong-Eun Lee, Edwin A. Bergin, James R. Lyons. 2008-03-05. Oxygen isotope anomalies of the Sun and the original environment of the Solar system. https://doi.org/10.1111/j.1945-5100.2008.tb00702.x

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