Artículo

Sraibman, L.; Minotti, F."Large-scale Model of the Axisymmetric Dynamo with Feedback Effects" (2019) Solar Physics. 294(1)
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Abstract:

A dynamo model is presented, based on a previously introduced kinematic model, in which the effect of the magnetic field on the mass flow through the Lorentz force is included. Given the base mass flow corresponding to the case with no magnetic field, and assuming that the modification of this flow through the Lorentz force can be treated as a perturbation, a complete model of the large-scale magnetic field dynamics can be obtained. The input needed consists of the large-scale meridional and zonal flows, the small-scale magnetic diffusivity, and a constant parameter entering the expression of the α-effect. When applied to a Sun-like star, the model shows realistic dynamics of the magnetic field, including cycle duration, consistent field amplitudes with the correct parity, progression of the zonal magnetic field toward the equator, and motion toward the poles of the radial field at high latitudes. In addition, the radial and zonal components show a correct phase relation, and at the surface level, the magnetic helicity is predominantly negative in the northern hemisphere and positive in the southern hemisphere. © 2019, Springer Nature B.V.

Registro:

Documento: Artículo
Título:Large-scale Model of the Axisymmetric Dynamo with Feedback Effects
Autor:Sraibman, L.; Minotti, F.
Filiación:Facultad de Ciencias Exactas y Naturales, Departamento de Física, Universidad de Buenos Aires, Buenos Aires, Argentina
Instituto de Física del Plasma (INFIP), CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:Magnetic fields, models; Solar cycle, models
Año:2019
Volumen:294
Número:1
DOI: http://dx.doi.org/10.1007/s11207-018-1350-1
Handle:http://hdl.handle.net/20.500.12110/paper_00380938_v294_n1_p_Sraibman
Título revista:Solar Physics
Título revista abreviado:Sol. Phys.
ISSN:00380938
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00380938_v294_n1_p_Sraibman

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Citas:

---------- APA ----------
Sraibman, L. & Minotti, F. (2019) . Large-scale Model of the Axisymmetric Dynamo with Feedback Effects. Solar Physics, 294(1).
http://dx.doi.org/10.1007/s11207-018-1350-1
---------- CHICAGO ----------
Sraibman, L., Minotti, F. "Large-scale Model of the Axisymmetric Dynamo with Feedback Effects" . Solar Physics 294, no. 1 (2019).
http://dx.doi.org/10.1007/s11207-018-1350-1
---------- MLA ----------
Sraibman, L., Minotti, F. "Large-scale Model of the Axisymmetric Dynamo with Feedback Effects" . Solar Physics, vol. 294, no. 1, 2019.
http://dx.doi.org/10.1007/s11207-018-1350-1
---------- VANCOUVER ----------
Sraibman, L., Minotti, F. Large-scale Model of the Axisymmetric Dynamo with Feedback Effects. Sol. Phys. 2019;294(1).
http://dx.doi.org/10.1007/s11207-018-1350-1