Publication:
Insight into History of GCR Heavy Nuclei Fluxes by Their Tracks in Meteorites

Дата
2022
Авторы
Alexandrov, A. B.
Bagulya, A. V.
Babaev, P. A.
Chernyavsky, M. M.
Gippius, A. A.
Gorbunov, S. A.
Grachev, V. M.
Polukhina, N. G.
Journal Title
Journal ISSN
Volume Title
Издатель
Научные группы
Организационные подразделения
Организационная единица
Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
Выпуск журнала
Аннотация
Abstract: The OLIMPIYA project investigates tracks of galactic cosmic rays (GCR) in olivine crystals from two meteorites-pallasites of different exposure ages. Extended statistics (up to 21 743 processed tracks) enabled to reveal a difference between the charge spectra of heaviest nuclei registered in these pallasites versus those from detectors mounted on near-Earth orbit satellites, as well as a difference between the GCR spectra registered in the meteorites themselves. Comparison of the r-element abundances in these spectra points that GCR fluxes from at least two rare cosmic nucleosynthesis events with enhanced production of these elements reached the Solar System during the exposition age of the older meteorite. Correlations of the experimental results with parameters of supernovae, asymptotic giant branches stars and neutron star mergers (NSM) are also discussed. © 2022, Pleiades Publishing, Ltd.
Описание
Ключевые слова
Цитирование
Insight into History of GCR Heavy Nuclei Fluxes by Their Tracks in Meteorites / Alexandrov, A.B. [et al.] // Physics of Atomic Nuclei. - 2022. - 85. - № 5. - P. 446-458. - 10.1134/S1063778822050039
Коллекции