Cosmogenic isotopes in the lunar soil: solar activity and nearby Supernova outbreak

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Аннотация

The lunar soil is an integral detector of cosmic rays (CRs) of different origin (Solar and Galactic). Analysis of the deep profiles of cosmogenic isotopes (14C, 41Ca, 36Cl, 10Be, 26Al, 53Mn) allows us to restore the intensity of CR on time scales of 3–4 half-lives of the corresponding isotope. To coordinate data on 10Be, it is required (in addition to the average flux of CRs) the presence of an additional source of accelerated particles with hard spectrum. Such a source can be, for example, an outbreak of a nearby SN 2–3 million years ago.

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Авторлар туралы

G. Vasilyev

Ioffe Physical-Technical Institute of the Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: gennadyivas@gmail.com
Ресей, Saint Petersburg

A. Konstantinov

Peter the Great Saint Petersburg Polytechnic University

Email: gennadyivas@gmail.com
Ресей, Saint Petersburg

V. Ostryakov

Peter the Great Saint Petersburg Polytechnic University

Email: gennadyivas@gmail.com
Ресей, Saint Petersburg

A. Pavlov

Ioffe Physical-Technical Institute of the Russian Academy of Sciences

Email: gennadyivas@gmail.com
Ресей, Saint Petersburg

D. Frolov

Ioffe Physical-Technical Institute of the Russian Academy of Sciences

Email: gennadyivas@gmail.com
Ресей, Saint Petersburg

Әдебиет тізімі

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Әрекет
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Жүктеу
2. Fig. 1. Depth profiles of induced activity (A, number of decays per min. per kg) of 10Be: points - experimental data [1], 1 - from GCR, 2 - from supernova outburst, 3 - total amount

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3. Fig. 2. Depth profiles of induced activity (A, number of decays per min per kg) of 53Mn: points - experimental data [2], 1 - from GCR, 2 - from supernova outburst, 3 - total amount

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