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Record Details

Record 65 of 7618
Chromium isotopic anomalies in the Allende meteorite
External Online Source: doi:10.1086/184737
Author and Affiliation:
Papanastassiou, D. A.(California Institute of Technology, Pasadena, United States)
Abstract: Abundances of the chromium isotopes in terrestrial and bulk meteorite samples are identical to 0.01 percent. However, Ca-Al-rich inclusions from the Allende meteorite show endemic isotopic anomalies in chromium which require at least three nucleosynthetic components. Large anomalies at Cr-54 in a special class of inclusions are correlated with large anomalies at Ca-48 and Ti-50 and provide strong support for a component reflecting neutron-rich nucleosynthesis at nuclear statistical equilibrium. This correlation suggests that materials from very near the core of an exploding massive star may be injected into the interstellar medium.
Publication Date: Sep 01, 1986
Document ID:
19870029377
(Acquired Nov 28, 1995)
Accession Number: 87A16651
Subject Category: LUNAR AND PLANETARY EXPLORATION
Document Type: Journal Article
Publication Information: Astrophysical Journal, Part 2 - Letters to the Editor; p. L27-L30; (ISSN 0004-637X); 308
Publisher Information: United States
Contract/Grant/Task Num: NAG9-43
Financial Sponsor: NASA; United States
Organization Source: California Inst. of Tech.; Pasadena, CA, United States
Description: 4p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ALLENDE METEORITE; CHROMIUM ISOTOPES; METEORITIC COMPOSITION; ANOMALIES; CALCIUM; INCLUSIONS; TITANIUM
Imprint And Other Notes: Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 308, Sept. 1, 1986, p. L27-L30.
Availability Source: Other Sources
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