Modeling a Maunder minimum

被引：34

作者：

Brandenburg, A. ^{[1
]}

Spiegel, E. A. ^{[2
]}

机构：

[1] NORDITA, SE-10691 Stockholm, Sweden

[2] Columbia Univ, Dept Astron, New York, NY 10027 USA

来源：

ASTRONOMISCHE NACHRICHTEN | 2008年 / 329卷 / 04期

关键词：

magnetohydrodynamics (MHD); turbulence; sun : activity; sun : magnetic fields;

D O I：

10.1002/asna.200810973

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We introduce on/off intermittency into a mean field dynamo model by imposing stochastic fluctuations in either the alpha effect or through the inclusion of a fluctuating electromotive force. Sufficiently strong small scale fluctuations with time scales of the order of 0.3-3 years can produce long term variations in the system on time scales of the order of hundreds of years. However, global suppression of magnetic activity in both hemispheres at once was not observed. The variation of the magnetic field does not resemble that of the sunspot number, but is more reminiscent of the 10 Be record. The interpretation of our results focuses attention on the connection between the level of magnetic activity and the sunspot number, an issue that must be elucidated if long term solar effects are to be well understood. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：351 / 358

页数：8

共 50 条

[21] On the Verge of a Grand Solar Minimum: A Second Maunder Minimum?
L. Zachilas
A. Gkana
Solar Physics, 2015, 290 : 1457 - 1477
[22] HUNGARIAN AURORAL OBSERVATIONS AND THE MAUNDER MINIMUM
BOTLEY, CM
OBSERVATORY, 1981, 101 (1043): : 123 - 123
[23] Solar cyclicity during the Maunder minimum
M. G. Ogurtsov
G. E. Kocharov
Yu. A. Nagovitsyn
Astronomy Reports, 2003, 47 : 517 - 524
[24] SUNSPOT CYCLE BEFORE MAUNDER MINIMUM
WITTMANN, A
ASTRONOMY & ASTROPHYSICS, 1978, 66 (1-2) : 93 - 97
[25] Redefining the limit dates for the Maunder Minimum
Vaquero, J. M.
Trigo, R. M.
NEW ASTRONOMY, 2015, 34 : 120 - 122
[26] SOLAR ROTATION DURING MAUNDER MINIMUM
EDDY, JA
GILMAN, PA
TROTTER, DE
SOLAR PHYSICS, 1976, 46 (01) : 3 - 14
[27] Solar cyclicity during the Maunder minimum
Ogurtsov, MG
Kocharov, GE
Nagovitsyn, YA
ASTRONOMY REPORTS, 2003, 47 (06) : 517 - 524
[28] An Active Sun Throughout the Maunder Minimum
Jürg Beer
Steven Tobias
Nigel Weiss
Solar Physics, 1998, 181 : 237 - 249
[29] No Maunder Minimum phase in HD 4915
Trivigno, M. Flores
Buccino, A. P.
Gonzalez, E.
Colombo, P. D.
Gonzalez, C.
Arancibia, M. Jaque
Bustos, R. V. Ibanez
Saffe, C.
Miquelarena, P.
Alacoria, J.
Collado, A.
ASTRONOMY & ASTROPHYSICS, 2024, 691
[30] HUNGARIAN AURORAL OBSERVATIONS AND THE MAUNDER MINIMUM
HEDERVARI, P
OBSERVATORY, 1981, 101 (1040): : 21 - 22

← 1 2 3 4 5 →