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dc.contributor.author
Gomez, Daniel Osvaldo  
dc.contributor.author
Mininni, Pablo Daniel  
dc.date.available
2017-08-08T15:19:44Z  
dc.date.issued
2006-12  
dc.identifier.citation
Gomez, Daniel Osvaldo; Mininni, Pablo Daniel; Description of Maunder-like events from a stochastic Alpha–Omega model; Elsevier; Advances in Space Research; 38; 5; 12-2006; 856-861  
dc.identifier.issn
0273-1177  
dc.identifier.uri
http://hdl.handle.net/11336/22020  
dc.description.abstract
One of the most impressive solar phenomena is its magnetic activity cycle. The number of sunspots observed in the solar surface varies with a period of approximately 11 years. Superimposed to this cyclic behavior, there are sporadic events such as the Maunder minimum, during which very few sunspots were detected. In the present work, an Alpha–Omega dynamo model is proposed to study these phenomena. We use velocity profiles of the solar interior obtained from helioseismology, which include differential rotation (the X-effect), a meridional flow and the turbulent velocity field of the convective region (the a-effect). By simulating the helicoidal and disordered flow of the giant cells through a stochastic component in the a coefficient, we reproduce not only the periodic behavior of the solar cycle, but also sporadic events such as the Maunder minimum. This model suggests the existence of a link between giant cell fluctuations and the irregularities observed in the solar cycle, such as north–south asymmetries and secular variations like the Maunder minimum.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Astronomy  
dc.subject.classification
Astronomía  
dc.subject.classification
Ciencias Físicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Description of Maunder-like events from a stochastic Alpha–Omega model  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-08-07T19:06:40Z  
dc.journal.volume
38  
dc.journal.number
5  
dc.journal.pagination
856-861  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Gomez, Daniel Osvaldo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina  
dc.description.fil
Fil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina  
dc.journal.title
Advances in Space Research  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.asr.2005.07.032  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0273117705009269