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Determining the Elemental and Isotopic Composition of the Pre-solar Nebula from Genesis Data Analysis: The Case of Oxygen

Laming, J. Martin and Heber, N. S. and Burnett, D. S. and Guan, Y. and Hervig, R. and Huss, G. R. and Jurewicz, A. J. G. and Koeman-Shields, E. C. and McKeegan, K. D. and Nittler, L. R. and Reisenfeld, D. B. and Rieck, K. D. and Wang, J. and Wiens, R. C. and Woolum, D. S. (2017) Determining the Elemental and Isotopic Composition of the Pre-solar Nebula from Genesis Data Analysis: The Case of Oxygen. Astrophysical Journal Letters, 851 (1). Art. No. L12. ISSN 2041-8213. PMCID PMC5893144. doi:10.3847/2041-8213/aa9bf0.

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We compare element and isotopic fractionations measured in bulk solar wind samples collected by NASA's Genesis mission with those predicted from models incorporating both the ponderomotive force in the chromosphere and conservation of the first adiabatic invariant in the low corona. Generally good agreement is found, suggesting that these factors are consistent with the process of solar wind fractionation. Based on bulk wind measurements, we also consider in more detail the isotopic and elemental abundances of O. We find mild support for an O abundance in the range 8.75–8.83, with a value as low as 8.69 disfavored. A stronger conclusion must await solar wind regime-specific measurements from the Genesis samples.

Item Type:Article
Related URLs:
URLURL TypeDescription CentralArticle Paper
Laming, J. Martin0000-0002-3362-7040
Burnett, D. S.0000-0001-9521-8675
Guan, Y.0000-0002-7636-3735
Hervig, R.0000-0001-7892-5423
Huss, G. R.0000-0003-4281-7839
Jurewicz, A. J. G.0000-0002-3282-5782
McKeegan, K. D.0000-0002-1827-729X
Nittler, L. R.0000-0002-5292-6089
Reisenfeld, D. B.0000-0003-1874-9450
Rieck, K. D.0000-0002-7427-9134
Wang, J.0000-0002-7671-2413
Wiens, R. C.0000-0002-3409-7344
Woolum, D. S.0000-0002-4461-0906
Additional Information:© 2017 The American Astronomical Society. Received 2017 August 29; revised 2017 October 30; accepted 2017 November 20; published 2017 December 6. This work was supported by grants from the NASA Heliophysics Supporting Research (NNH16AC39I) and Laboratory Analysis of Returned Samples Programs (NNH17AE60I, NNH15AZ67I, NNX15AG19G) and by basic research funds of the Chief of Naval Research. We are grateful to Yuan-Kuen Ko for discussions of ACE data.
Funding AgencyGrant Number
Chief of Naval ResearchUNSPECIFIED
Subject Keywords:solar wind – Sun: abundances – Sun: chromosphere – turbulence – waves
Issue or Number:1
PubMed Central ID:PMC5893144
Record Number:CaltechAUTHORS:20171206-112123892
Persistent URL:
Official Citation:J. Martin Laming et al 2017 ApJL 851 L12
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83730
Deposited By: Tony Diaz
Deposited On:07 Dec 2017 00:01
Last Modified:21 Mar 2022 16:30

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