The Oxygen Isotopic Composition of the Sun Inferred from Captured Solar Wind

KD McKeegan; APA Kallio; VS Heber; G Jarzebinski; PH Mao; CD Coath; T Kunihiro; RC Wiens; JE Nordholt; RW Moses; DB Reisenfeld; AJG Jurewicz; DS Burnett

doi:10.1126/science.1204636

The Oxygen Isotopic Composition of the Sun Inferred from Captured Solar Wind

KD McKeegan, APA Kallio, VS Heber, G Jarzebinski, PH Mao, CD Coath, T Kunihiro, RC Wiens, JE Nordholt, RW Moses, DB Reisenfeld, AJG Jurewicz, DS Burnett

Research output: Contribution to journal › Article (Academic Journal) › peer-review

228 Citations (Scopus)

Abstract

All planetary materials sampled thus far vary in their relative abundance of the major isotope of oxygen, O-16, such that it has not been possible to define a primordial solar system composition. We measured the oxygen isotopic composition of solar wind captured and returned to Earth by NASA's Genesis mission. Our results demonstrate that the Sun is highly enriched in O-16 relative to the Earth, Moon, Mars, and bulk meteorites. Because the solar photosphere preserves the average isotopic composition of the solar system for elements heavier than lithium, we conclude that essentially all rocky materials in the inner solar system were enriched in O-17 and O-18, relative to O-16, by similar to 7%, probably via non-mass-dependent chemistry before accretion of the first planetesimals.

Translated title of the contribution	The Oxygen Isotopic Composition of the Sun Inferred from Captured Solar Wind
Original language	English
Pages (from-to)	1528 - 1532
Number of pages	5
Journal	Science
Volume	332
DOIs	https://doi.org/10.1126/science.1204636
Publication status	Published - Jun 2011

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title = "The Oxygen Isotopic Composition of the Sun Inferred from Captured Solar Wind",

abstract = "All planetary materials sampled thus far vary in their relative abundance of the major isotope of oxygen, O-16, such that it has not been possible to define a primordial solar system composition. We measured the oxygen isotopic composition of solar wind captured and returned to Earth by NASA's Genesis mission. Our results demonstrate that the Sun is highly enriched in O-16 relative to the Earth, Moon, Mars, and bulk meteorites. Because the solar photosphere preserves the average isotopic composition of the solar system for elements heavier than lithium, we conclude that essentially all rocky materials in the inner solar system were enriched in O-17 and O-18, relative to O-16, by similar to 7%, probably via non-mass-dependent chemistry before accretion of the first planetesimals.",

author = "KD McKeegan and APA Kallio and VS Heber and G Jarzebinski and PH Mao and CD Coath and T Kunihiro and RC Wiens and JE Nordholt and RW Moses and DB Reisenfeld and AJG Jurewicz and DS Burnett",

year = "2011",

month = jun,

doi = "10.1126/science.1204636",

language = "English",

volume = "332",

pages = "1528 -- 1532",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

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The Oxygen Isotopic Composition of the Sun Inferred from Captured Solar Wind. / McKeegan, KD; Kallio, APA; Heber, VS; Jarzebinski, G; Mao, PH; Coath, CD; Kunihiro, T; Wiens, RC; Nordholt, JE; Moses, RW; Reisenfeld, DB; Jurewicz, AJG; Burnett, DS.

In: Science, Vol. 332, 06.2011, p. 1528 - 1532.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

TY - JOUR

T1 - The Oxygen Isotopic Composition of the Sun Inferred from Captured Solar Wind

AU - McKeegan, KD

AU - Kallio, APA

AU - Heber, VS

AU - Jarzebinski, G

AU - Mao, PH

AU - Coath, CD

AU - Kunihiro, T

AU - Wiens, RC

AU - Nordholt, JE

AU - Moses, RW

AU - Reisenfeld, DB

AU - Jurewicz, AJG

AU - Burnett, DS

PY - 2011/6

Y1 - 2011/6

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AB - All planetary materials sampled thus far vary in their relative abundance of the major isotope of oxygen, O-16, such that it has not been possible to define a primordial solar system composition. We measured the oxygen isotopic composition of solar wind captured and returned to Earth by NASA's Genesis mission. Our results demonstrate that the Sun is highly enriched in O-16 relative to the Earth, Moon, Mars, and bulk meteorites. Because the solar photosphere preserves the average isotopic composition of the solar system for elements heavier than lithium, we conclude that essentially all rocky materials in the inner solar system were enriched in O-17 and O-18, relative to O-16, by similar to 7%, probably via non-mass-dependent chemistry before accretion of the first planetesimals.

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