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The future of Genesis science

Burnett, D. S. and Jurewicz, A. J. G. and Woolum, D. S. (2019) The future of Genesis science. Meteoritics and Planetary Science, 54 (5). pp. 1092-1114. ISSN 1086-9379. PMCID PMC6519397. doi:10.1111/maps.13266.

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Solar abundances are important to planetary science since the prevalent model assumes that the composition of the solar photosphere is that of the solar nebula from which planetary materials formed. Thus, solar abundances are a baseline for planetary science. Previously, solar abundances have only been available through spectroscopy or by proxy (CI). The Genesis spacecraft collected and returned samples of the solar wind for laboratory analyses. Elemental and isotopic abundances in solar wind from Genesis samples have been successfully measured despite the crash of the re‐entry capsule. Here we present science rationales for a set of 12 important (and feasible postcrash) Science and Measurement Objectives as goals for the future (Table 1). We also review progress in Genesis sample analyses since the last major review (Burnett 2013). Considerable progress has been made toward understanding elemental fractionation during the extraction of the solar wind from the photosphere, a necessary step in determining true solar abundances from solar wind composition. The suitability of Genesis collectors for specific analyses is also assessed. Thus far, the prevalent model remains viable despite large isotopic variations in a number of volatile elements, but its validity and limitations can be further checked by several Objectives.

Item Type:Article
Related URLs:
URLURL TypeDescription CentralArticle
Burnett, D. S.0000-0001-9521-8675
Jurewicz, A. J. G.0000-0002-3282-5782
Woolum, D. S.0000-0002-4461-0906
Additional Information:© 2019 The Authors. Meteoritics & Planetary Science published by Wiley Periodicals, Inc. on behalf of The Meteoritical Society (MET). This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Version of Record online: 25 February 2019; Manuscript accepted: 30 January 2019; Manuscript received: 07 September 2016. We benefitted from useful reviews from L. Nyquist, A. Davis, and M. Caffee. We also gratefully acknowledge two decades worth of assistance on Genesis at Caltech by Julie Paque and Janis Haskell. The work was supported by NASA LARS Grant 80NSSC17K0025.
Funding AgencyGrant Number
Issue or Number:5
PubMed Central ID:PMC6519397
Record Number:CaltechAUTHORS:20190225-110316155
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Official Citation:Burnett, D. S., Jurewicz, A. J. and Woolum, D. S. (2019), The future of Genesis science. Meteorit Planet Sci, 54: 1092-1114. doi:10.1111/maps.13266
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:93224
Deposited By: Tony Diaz
Deposited On:25 Feb 2019 19:11
Last Modified:01 Mar 2022 18:17

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