Generation by global migratory flow of variable magnetic field of the Sun

Loginov, A. A.; Krivodubskij, V. N.; Cheremnykh, O. K.

doi:10.15407/kfnt2021.01.030

Cited by 1 publication

(8 citation statements)

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“…It is worth to note that both flows depicted in Figs. 3, a, 3, b, were discovered as independent from each other [19,20]. Their connection with each other is assumed, but has not yet been proven.…”

Section: ω Formationmentioning

confidence: 98%

“…1. A detailed description of the model and research results can be found in works [15][16][17][18][19][20].…”

Section: Yyyyyy Yyyyyy Yyy Yyy Yyymentioning

confidence: 99%

“…(1) 𝜃 of any form satisfy them, as long as they satisfy the equation divH 1 = 0. We have chosen the dipole form of these components [20], since the relict dipole magnetic field is well observed on the Sun [25]. Hence, 𝐻…”

Section: Generation Of a Toroidal Field (ω-Effect)mentioning

confidence: 99%

“…We called the latter the global migratory flow (GMF). In [18][19][20], we have demonstrated the dominant role of the global migratory flow in the generation of a variable magnetic field of the Sun. In this paper, we briefly outline the kinematic model of the solar magnetic cycle developed by us and give an explanation, with its help, of some observational phenomena on the solar surface that could not be explained on the base of mean-field theory.…”

Section: Introductionmentioning

confidence: 97%

“…Earlier, we proposed a fairly simple model of the space-time structure of the global flows of the Sun with inductive action [15][16][17][18][19][20]. This model uses data from helioseismological studies on the internal structure of a rotating SCZ.…”

Section: Introductionmentioning

confidence: 99%

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Kinematic Dynamo Model of a Solar Magnetic Cycle

et al. 2023

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The paper deals with the problem of explaining the origin and nature of the space-time variations in the magnetic activity of the Sun. It presents a new hydrodynamic model of the solar magnetic cycle, which uses helioseismological data on the differential rotation of the solar convective zone. The model is based on the hypothesis of the emergence of global flows as a result of the loss of stability of a differentially rotating plasma layer in the convective zone. First, the hydrodynamic global plasma flows are calculated without accounting for the effect of a magnetic field on them. Under this condition, it is shown that the solutions found describe all global flows observed on the surface of the Sun: permanent meridional circulation from the equator to the poles, torsional oscillations and space-time variations of the meridional flow. We conclude that the last two flows are azimuthal and meridional components of a single three-dimensional global hydrodynamic flow. Second, to simulate the dynamics of the magnetic field, the found velocities of global migrating flows and the spatial profile of the angular velocity of the internal differential rotation of the solar convective zone obtained from helioseismic measurements were used. Good coincidences have been obtained between the characteristics of the calculated dynamics of global migrating flows and the variable global magnetic fields generated by them with the observed values on the solar surface. An explanation is given for some phenomena on the surface of the Sun, which could not be explained within the framework of the available models.

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Section: ω Formationmentioning

confidence: 98%

“…1. A detailed description of the model and research results can be found in works [15][16][17][18][19][20].…”

Section: Yyyyyy Yyyyyy Yyy Yyy Yyymentioning

confidence: 99%