Determination of the Galaxy age by the method of uranium–thorium–plutonium isotopic ratios


如何引用文章

全文:

开放存取 开放存取
受限制的访问 ##reader.subscriptionAccessGranted##
受限制的访问 订阅存取

详细

The dependence of the Galaxy age (ТG), as determined by the method of uranium–thorium isotopic ratios, on the parameters of the nucleosynthesis model is studied within the theory of galactic nucleosynthesis. It is shown that ТG depends strongly both on the scenario of the production of nuclei in the r-process and those features of neutron-rich nuclei that are used in the respective analysis and on galactic-nucleosynthesis parameters. The effect of a sudden nucleosynthesis spike before the formation of a solar system on the Galaxy age is evaluated. The region of admissible values of the parameters of galacticnucleosynthesis theory is discussed. The method of uranium–thorium isotopic ratios is supplemented with the 244Pu/238U ratio for yet another cosmochronometer pair, and the Galaxy age is estimated on the basis of the model modified in this way.

作者简介

I. Panov

Institute for Theoretical and Experimental Physics; National Research Center Kurchatov Institute

编辑信件的主要联系方式.
Email: Igor.Panov@itep.ru
俄罗斯联邦, Bol’shaya Cheremuskinskaya ul. 25, Moscow, 117218; pl.Akademika Kurchatova 1, Moscow, 123182

Yu. Lutostansky

National Research Center Kurchatov Institute

Email: Igor.Panov@itep.ru
俄罗斯联邦, pl.Akademika Kurchatova 1, Moscow, 123182

M. Eichler

Institut für Kernphysik

Email: Igor.Panov@itep.ru
德国, S2|15, Schloßgartenstraße 7, Darmstadt, 64289

F.-K. Thielemann

Institut für Physik

Email: Igor.Panov@itep.ru
瑞士, Klingelbergstrasse 82, Basel, 4056

补充文件

附件文件
动作
1. JATS XML

版权所有 © Pleiades Publishing, Ltd., 2017