Cosmogenic radionuclides in Chelyabinsk and Kosice chondrites and features of solar cycles 23 and 24
| Autor: | Pavel P. Povinec, Matthias Laubenstein, G. K. Ustinova, V. A. Alexeev |
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| Rok vydání: | 2015 |
| Předmět: |
Radionuclide
Astrophysics::High Energy Astrophysical Phenomena General Physics and Astronomy Cosmic ray Physics::Geophysics Astrobiology Meteorite Chondrite Physics::Space Physics Astrophysics::Solar and Stellar Astrophysics Environmental science Astrophysics::Earth and Planetary Astrophysics Solar dynamo Heliosphere |
| Zdroj: | Bulletin of the Russian Academy of Sciences: Physics. 79:596-599 |
| ISSN: | 1934-9432 1062-8738 |
| Popis: | Based on the example of the measured and calculated contents of cosmogenic radionuclides in freshly fallen Chelyabinsk and Kosice chondrites, an indirect approach to studying variations in galactic cosmic rays is presented that uses variations in the rates of production of radionuclides with different half-lives in the meteorites that continuously fall to Earth from orbits of different sizes and inclinations. The advantages of monitoring these data over a long time scale to establish the main regularities of solar modulation processes in the heliosphere are demonstrated. The possible effect of stochastic factors in the operation of the solar dynamo had on the peculiarities of GCR modulation in solar cycles 23 and 24 is discussed. |
| Databáze: | OpenAIRE |
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