Cosmogenic Mn-53 in meteorites
The distributions of the Mn-53 contents in 106 nonantarctic and 112 antarctic chondrites were analyzed. A correlation analysis of these distributions showed that the correlation coefficient is a maximum r sub max = 0.75 plus or minus 0.03) when the histogram for antarctic chondrites is displaced by...
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1985
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ftnasantrs:oai:casi.ntrs.nasa.gov:19850026794 2023-05-15T13:58:36+02:00 Cosmogenic Mn-53 in meteorites Lavrukhina, A. K. Alexeev, V. A. Unclassified, Unlimited, Publicly available Aug 1, 1985 application/pdf http://hdl.handle.net/2060/19850026794 unknown Document ID: 19850026794 Accession ID: 85N35107 http://hdl.handle.net/2060/19850026794 No Copyright CASI SPACE RADIATION SH-7.1-17 19th Intern. Cosmic Ray Conf - Vol. 5; p 418-421; NASA-CP-2376-VOL-5 1985 ftnasantrs 2019-07-21T09:45:09Z The distributions of the Mn-53 contents in 106 nonantarctic and 112 antarctic chondrites were analyzed. A correlation analysis of these distributions showed that the correlation coefficient is a maximum r sub max = 0.75 plus or minus 0.03) when the histogram for antarctic chondrites is displaced by 40 plus or minus 8 dpm kg-1Fe towards lower Mn-53 contents. The distribution of Mn-53 saturated contents in nonantarctic ordinary chondrites was investigated as a function of their radiation age (T). It is found that the Mn-53 average content is higher by (21 plus or minus 9)% in H-chondrites with radiation age T approximately 12 Myr than in thse with T 12 Myr. This effect can be attributed to the fact that a considerable proportion of H-chondrites with T 12 Myr originates from a comet or from the objects of Chiron like, with the orbits more inclined to the ecliptic plane and/or more extended, which caused their irradiation by cosmic rays of higher intensity. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic |
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Open Polar |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
language |
unknown |
topic |
SPACE RADIATION |
spellingShingle |
SPACE RADIATION Lavrukhina, A. K. Alexeev, V. A. Cosmogenic Mn-53 in meteorites |
topic_facet |
SPACE RADIATION |
description |
The distributions of the Mn-53 contents in 106 nonantarctic and 112 antarctic chondrites were analyzed. A correlation analysis of these distributions showed that the correlation coefficient is a maximum r sub max = 0.75 plus or minus 0.03) when the histogram for antarctic chondrites is displaced by 40 plus or minus 8 dpm kg-1Fe towards lower Mn-53 contents. The distribution of Mn-53 saturated contents in nonantarctic ordinary chondrites was investigated as a function of their radiation age (T). It is found that the Mn-53 average content is higher by (21 plus or minus 9)% in H-chondrites with radiation age T approximately 12 Myr than in thse with T 12 Myr. This effect can be attributed to the fact that a considerable proportion of H-chondrites with T 12 Myr originates from a comet or from the objects of Chiron like, with the orbits more inclined to the ecliptic plane and/or more extended, which caused their irradiation by cosmic rays of higher intensity. |
format |
Other/Unknown Material |
author |
Lavrukhina, A. K. Alexeev, V. A. |
author_facet |
Lavrukhina, A. K. Alexeev, V. A. |
author_sort |
Lavrukhina, A. K. |
title |
Cosmogenic Mn-53 in meteorites |
title_short |
Cosmogenic Mn-53 in meteorites |
title_full |
Cosmogenic Mn-53 in meteorites |
title_fullStr |
Cosmogenic Mn-53 in meteorites |
title_full_unstemmed |
Cosmogenic Mn-53 in meteorites |
title_sort |
cosmogenic mn-53 in meteorites |
publishDate |
1985 |
url |
http://hdl.handle.net/2060/19850026794 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
CASI |
op_relation |
Document ID: 19850026794 Accession ID: 85N35107 http://hdl.handle.net/2060/19850026794 |
op_rights |
No Copyright |
_version_ |
1766266966028320768 |