Niederer, F. R. and Papanastassiou, D. A. and Wasserburg, G. J.
(1980)
Endemic isotopic anomalies in titanium.
Astrophysical Journal Letters, 240
.
L73-L77.
ISSN 2041-8205.
doi:10.1086/183326.
https://resolver.caltech.edu/CaltechAUTHORS:20131029-154522497
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Abstract
Abundances of the titanium isotopes were determined using a new high-precision technique that shows terrestrial, lunar, and bulk meteorite samples to be indistinguishable. Ca-Al-Ti-rich inclusions in the Allende meteorite are found to contain Ti of widely varying isotopic composition reflecting the presence of at least three nucleosynthetic components. The anomalies in Ti appear to be relatively widespread and, when correlated with Ca data, provide a clue to nucleosynthesis in the neighborhood of the iron peak and to the late-stage nucleosynthetic processes which immediately preceded formation of the solar nebula.
| Item Type: | Article |
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| Additional Information: | © 1980 American Astronomical Society. Received 1980 March 19; accepted 1980 May 9. We acknowledge our ignorance of the detailed nuclear
astrophysical processes which produced titanium. We
thank the National Science Foundation, the National
Aeronautics and Space Administration, and the Swiss
National Science Foundation for supporting our efforts
to explore these mysteries. Our colleagues Fouad Tera
and Thomas Kaiser generously shared their deep knowledge
of Ti chemistry with us. W. A. Fowler's long-term
interest in the iron peak has been useful in keeping us
directed toward a state of quasi-equilibrium. We have
profited substantially from discussions of nucleosynthesis
with A. G. W. Cameron. |
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| Funders: | | Funding Agency | Grant Number |
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| NSF | UNSPECIFIED | | NASA | UNSPECIFIED | | Swiss National Science Foundation (SNSF) | UNSPECIFIED |
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| Subject Keywords: | meteors and meteorites - nucleosynthesis - solar system: general |
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| Other Numbering System: | | Other Numbering System Name | Other Numbering System ID |
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| Caltech Division of Geological and Planetary Sciences | 3426 | | Lunatic Asylum Lab | 346 |
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| DOI: | 10.1086/183326 |
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| Record Number: | CaltechAUTHORS:20131029-154522497 |
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| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20131029-154522497 |
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| Official Citation: | Endemic isotopic anomalies in titanium
Niederer, F. R.; Papanastassiou, D. A.; Wasserburg, G. J.
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 240, Aug. 15, 1980, p. L73-L77 |
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| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
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| ID Code: | 42130 |
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| Collection: | CaltechAUTHORS |
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| Deposited By: |
Ruth Sustaita
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| Deposited On: | 30 Oct 2013 20:02 |
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| Last Modified: | 10 Nov 2021 16:18 |
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