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A Test of the Supernova Trigger Hypothesis with ^(60)Fe and ^(26)Al

Wasserburg, G. J. and Gallino, R. and Busso, M. (1998) A Test of the Supernova Trigger Hypothesis with ^(60)Fe and ^(26)Al. Astrophysical Journal Letters, 500 (2). L189-L193. ISSN 2041-8205. doi:10.1086/311414.

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It is shown that if the ^(26)Al inventory of the early solar system, taken as (^(26)Al/^(27)Al)_☉ = 5×10^(−5), is a result of injection of fresh debris from a Type II supernova (SNII), then ^(60)Fe/^(56)Fe would have to be between 3×10^(−7) and 1×10^(−5). This inferred correlation of ^(26)Al and ^(60)Fe is based on the observation that both nuclei are produced dominantly in the O/Ne zone and that for SNII ejecta ^(26)Al/^(60)Fe is between 0.6 and 23. A similar correlation applies to ^(41)Ca,^(36)Cl,^(16)O, and ^(18)O, which are also produced in the same zone or in nearby regions. The supernova trigger hypothesis may be tested by determination of ^(60)Ni excesses correlated with Fe in samples where ^(26)Al was demonstrated to be present. From available experimental data, it appears that the observed abundance of ^(60)Fe is too low to be compatible with a supernova trigger that injected the ^(26)Al into the protosolar nebula. The same is true for ^(53)Mn, a short-lived nucleus produced in the outer edge of the Ni core.

Item Type:Article
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Wasserburg, G. J.0000-0002-7957-8029
Additional Information:© 1998 American Astronomical Society. Received 1998 March 3; accepted 1998 April 24; published 1998 June 8. We thank Stan Woosley for useful discussions and R. Kavanagh and P. Vogel for help with the heat. R. G. and M. B. wish to thank Caltech and the Lunatic Asylum for hospitality during the development of this work. Research supported by NASA NAGW5-4076. Division Contribution 8509 (989).
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Subject Keywords: ISM: abundances; nuclear reactions, nucleosynthesis, abundances; solar system: formation; stars: formation; supernovae: general
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Caltech Division of Geological and Planetary Sciences8509
Lunatic Asylum Lab989
Issue or Number:2
Record Number:CaltechAUTHORS:20131212-073249454
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Official Citation: A Test of the Supernova Trigger Hypothesis with 60Fe and 26Al G. J. Wasserburg et al. 1998 ApJ 500 L189
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42967
Deposited By: Ruth Sustaita
Deposited On:12 Dec 2013 16:06
Last Modified:10 Nov 2021 16:31

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