scholarly journals Evolution of localized magnetic field perturbations and the nature of turbulent dynamo

2021 ◽  
Vol 33 (7) ◽  
pp. 075105
Author(s):  
A. S. Il'yn ◽  
A. V. Kopyev ◽  
V. A. Sirota ◽  
K. P. Zybin
Keyword(s):  
Magnetic Field ◽  
Turbulent Dynamo ◽  
Localized Magnetic Field

Biofluid flow in a channel under the action of a uniform localized magnetic field

2005 ◽  
Vol 36 (5) ◽  
pp. 360-374 ◽  
Author(s):  
E. E. Tzirtzilakis ◽  
V. C. Loukopoulos
Keyword(s):  
Magnetic Field ◽  
Localized Magnetic Field

scholarly journals Dynamo Driven Mean Magnetic Field in Accretion Disks of Compact Astrophysical Objects and its Manifestations

1990 ◽  
Vol 140 ◽  
pp. 395-398
Author(s):  
G.D. Chagelishvili ◽  
R.G. Chanishvili ◽  
J.G. Lominadze ◽  
Z.A. Sokhadze
Keyword(s):  
Magnetic Field ◽  
Accretion Disks ◽  
Compact Star ◽  
Mean Field ◽  
Small Scale ◽  
Turbulent Dynamo ◽  
Astrophysical Objects ◽  
Dynamo Mechanism

The simplest case of the nonlinear turbulent dynamo mechanism is proposed. It is shown that under certain conditions the generated mean magnetic field can become stronger than the small-scale one. Some manifestations (the model of Cyg X-1 bimodal behaviour, asymmetric accretion onto the magnetized rotating compact star) of this mean field are discussed.

scholarly journals Localized Magnetic-field Structures and Their Boundaries in the Near-Sun Solar Wind from Parker Solar Probe Measurements

2020 ◽  
Vol 893 (2) ◽  
pp. 93 ◽  
Author(s):  
V. Krasnoselskikh ◽  
A. Larosa ◽  
O. Agapitov ◽  
T. Dudok de Wit ◽  
M. Moncuquet ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Solar Wind ◽  
Localized Magnetic Field ◽  
Probe Measurements

Magnetic fields in the solar photosphere

2008 ◽  
Vol 366 (1884) ◽  
pp. 4465-4476 ◽  
Author(s):  
Paul J Bushby
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Active Regions ◽  
Theoretical Models ◽  
Solar Photosphere ◽  
Complex Field ◽  
Theoretical Understanding ◽  
Magnetic Features ◽  
Localized Magnetic Field ◽  
Made In

Recent high-resolution observations of the surface of the Sun have revealed the fine structure of a vast array of complex photospheric magnetic features. Observations of these magnetic field structures have already greatly enhanced our theoretical understanding of the interactions between magnetic fields and turbulent convection, and future photospheric observations will inevitably present new theoretical challenges. In this review, I discuss recent progress that has been made in the modelling of photospheric magnetic fields. In particular, I focus upon the complex field structures that are observed within the umbrae and the penumbrae of sunspots. On a much smaller scale, I also discuss models of the highly localized magnetic field structures that are observed in less magnetically active regions of the photosphere. As the spatial resolution of telescopes has improved over the last few years, it has now become possible to observe these features in detail, and theoretical models can now describe much of this behaviour. In the last section of this review, I discuss some of the remaining unanswered questions.

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