Solar Activity during the Maunder Minimum: Comparison with the Dalton Minimum

被引：13

作者：

Ogurtsov, M. G. ^{[1
]}

机构：

[1] Russian Acad Sci, Ioffe Physicotech Inst, Politekhnicheskaya 26, St Petersburg 194021, Russia

来源：

ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 2018年 / 44卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

Sun; solar paleoastrophysics; solar activity; NORTHERN-HEMISPHERE TEMPERATURES; COSMOGENIC NUCLIDE PRODUCTION; HELIOSPHERIC MODULATION; SUNSPOT ACTIVITY; C-14; BE-10; RECONSTRUCTION; IRRADIANCE; MILLENNIUM; NUMBERS;

D O I：

10.1134/S1063773718040060

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The solar modulation potential has been reconstructed from data on the Be-10 concentration in south and central Greenland ice over more than 500 last years. These two reconstructions, along with fourteen others obtained by various authors from data on the cosmogenic isotopes C-14 and Be-10, have been investigated in the time interval 1630-1840 encompassing the Maunder and Dalton minima. The information contained in these sixteen paleoreconstructions has been generalized. The available data on the concentration of cosmogenic isotopes in terrestrial archives suggest that the solar activity in the first part of theMaunder minimum (1645-1680) was lower than that at the Dalton minimum (1792-1827), while in the second part (1680-1715) it was considerably lower. At the same time, at the beginning of theMaunder minimum (1645-1660) the solar activity could reach levels exceeding noticeably the estimates based on telescopic observations. Possible causes of these discrepancies and the directions of further research are discussed.

引用

页码：278 / 288

页数：11

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