History of heavy r-process elements in galactic cosmic rays from nuclei tracks in meteorite olivine
Alexandrov A. Babaev P. Bagulya A. Chernyavsky M. Gippius A. Gorbunov S. Grachev V. Kalinina G. Konovalova N. Okateva N. Polukhina N. Rymzhanov R. Starkova E. Starkov N. Naing Soe T. Shchedrina T. Volkov A. Voronkov R.
1 November 2022Elsevier Ltd
Advances in Space Research
2022#70Issue 92674 - 2684 pp.
The OLIMPIYA project studies tracks of heavy nuclei from Galactic cosmic rays (GCR) in olivine crystals from two meteorites-pallasites of different cosmic-ray exposure ages. The updated data presented is used to analyze the history of local variations in the GCR flux over the past ∼200 Myr. The analysis demonstrates the difference in the abundances of heavy nuclei registered in the meteorites and satellite detectors, as well as in the meteorites themselves. This difference may indicate the influence of at least two rare cosmic sources of r-element nucleosynthesis on GCR fluxes in the vicinity of the Solar System. Two possible sources, namely Supernovae (SN) and asymptotic giant branch stars (AGB) events versus the neutron star mergers or neutron star - black hole mergers (NSM) events, are compared in terms of the yield of r-elements.
Chemical etching , Galactic cosmic rays , Heavy and superheavy nuclei formation , Meteorites , Nuclei tracks , Pattern recognition
Text of the article Перейти на текст статьи
Lebedev Physical Institute, Russian Academy of Sciences, 53 LeninskyProsp, Moscow, 119991, Russian Federation
INFN sezione di Napoli, Napoli, I-80126, Italy
Universita‘degliStudi di Napoli Federico II,I-80126, Napoli, Italy
National Research Nuclear University MEPhI, 31 KashirskoeShosse, Moscow, 115409, Russian Federation
Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, 6 Joliot-Curie Street, Dubna, 141980, Russian Federation
Institute of Nuclear Physics, 1 Ibragimov St, Almaty, 050032, Kazakhstan
National Research Centre “Kurchatov Institute”, Kurchatov Sq.1, Moscow, 123182, Russian Federation
Lebedev Physical Institute
INFN sezione di Napoli
Universita‘degliStudi di Napoli Federico II
National Research Nuclear University MEPhI
Flerov Laboratory of Nuclear Reactions
Institute of Nuclear Physics
National Research Centre “Kurchatov Institute”
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026