Reconciling solar and stellar magnetic cycles with nonlinear dynamo simulations

doi:10.1126/science.aal3999

GSTDTAP > 地球科学

DOI	10.1126/science.aal3999
	Reconciling solar and stellar magnetic cycles with nonlinear dynamo simulations
	Strugarek, A.1,2; Beaudoin, P.1; Charbonneau, P.1; Brun, A. S.2; do Nascimento, J. -D., Jr.3,4
	2017-07-14
发表期刊	SCIENCE
ISSN	0036-8075
EISSN	1095-9203
出版年	2017
卷号	357 期号:6347 页码:185-+
文章类型	Article
语种	英语
国家	Canada; France; Brazil; USA
英文摘要	The magnetic fields of solar-type stars are observed to cycle over decadal periods-11 years in the case of the Sun. The fields originate in the turbulent convective layers of stars and have a complex dependency upon stellar rotation rate. We have performed a set of turbulent global simulations that exhibit magnetic cycles varying systematically with stellar rotation and luminosity. We find that the magnetic cycle period is inversely proportional to the Rossby number, which quantifies the influence of rotation on turbulent convection. The trend relies on a fundamentally nonlinear dynamo process and is compatible with the Sun's cycle and those of other solar-type stars.
领域	地球科学 ; 气候变化 ; 资源环境
收录类别	SCI-E
WOS记录号	WOS:000405391700041
WOS关键词	MAIN-SEQUENCE ; CONVECTION ; ROTATION ; STARS ; MODEL ; SUN
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
URL	查看原文
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/196464
专题	地球科学资源环境科学气候变化
作者单位	1.Univ Montreal, Dept Phys, CP 6128,Succursale Ctr Ville, Montreal, PQ H3C 3J7, Canada; 2.Univ Paris Diderot, CNRS,Irfu, Inst Natl Sci Univers,Commissariat Energie Atom &, Lab Astrophys,Instrumentat,Modelisat Paris Saclay, F-91191 Paris, France; 3.Univ Fed Rio Grande do Norte, Dept Fis Teor & Expt, CP 1641, BR-59072970 Natal, RN, Brazil; 4.Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
推荐引用方式 GB/T 7714	Strugarek, A.,Beaudoin, P.,Charbonneau, P.,et al. Reconciling solar and stellar magnetic cycles with nonlinear dynamo simulations[J]. SCIENCE,2017,357(6347):185-+.
APA	Strugarek, A.,Beaudoin, P.,Charbonneau, P.,Brun, A. S.,&do Nascimento, J. -D., Jr..(2017).Reconciling solar and stellar magnetic cycles with nonlinear dynamo simulations.SCIENCE,357(6347),185-+.
MLA	Strugarek, A.,et al."Reconciling solar and stellar magnetic cycles with nonlinear dynamo simulations".SCIENCE 357.6347(2017):185-+.