Results 1 to 10 of about 22,396 (187)

Solar dynamo [PDF]

, 2013
No abstract ...
Arlt, R., Bonanno, A., Brandenburg, A., Brun, A. S., Busse, F. H., Dikpati, M., Gilman, P. A., Hara, H., Hill, F., Kitiashvili, I. N., Kleeorin, N., Komm, R., Kosovichev, A. G., Mansour, N. N., Miesch, M., Nordlund, A., Pevtsov, A. A., Pipin, V. V., Rempel, M., Rogachevskii, I., Ruediger, G., Sekii, T., Simitev, R., Stein, R. F., Stenflo, J. O., Thompson, M. J., Ulrich, R. K., Wray, A. A., Yokoi, N., Yokoyama, T., Zhao, J.   +30 more
core   +3 more sources

Evaluating solar-like behavior in turbulent alpha and Babcock–Leighton mechanisms using non-kinematic nonlinear flux-transport solar dynamos [PDF]

Scientific Reports
In this study, we simulate 30,000 years of solar activity using turbulent-alpha (TA) and Babcock–Leighton (BL) mechanisms in a non-kinematic, nonlinear mean field flux-transport solar dynamo model.
Fadil Inceoglu, Rainer Arlt
doaj   +2 more sources

Helioseismic evidence that the solar dynamo originates near the tachocline [PDF]

Scientific Reports
The exact location of the solar dynamo remains uncertain–whether it operates primarily in the near-surface shear layer, throughout the entire convection zone, or near the tachocline - a region of sharp transition in the solar rotation, located at the ...
Krishnendu Mandal, Alexander G. Kosovichev   +1 more
doaj   +2 more sources

Magnetic Helicity and the Solar Dynamo [PDF]

Entropy, 2019
Solar magnetism is believed to originate through dynamo action in the tachocline. Statistical mechanics, in turn, tells us that dynamo action is an inherent property of magnetohydrodynamic (MHD) turbulence, depending essentially on magnetic helicity ...
John V. Shebalin
doaj   +2 more sources

The solar dynamo [PDF]

International Astronomical Union Colloquium, 1991
AbstractThe traditionalαΩ-dynamo as a model for the solar cycle has been successful in explaining the butterfly diagram, phase relations between poloidal and toroidal field, and polar branch migration features. Observational and theoretical achievements in recent years have however shaken this picture.
Axel Brandenburg, Ilkka Tuominen
openaire   +2 more sources

Magnetic Signatures of Large-Scale Electric Currents in the Earth’s Environment at Middle and Low Latitudes

Atmosphere, 2022
The purpose of space weather is the systemic study of the Sun–Earth system, in order to determine the impact of solar events on the electromagnetic environment of the Earth.
Christine Amory-Mazaudier
doaj   +1 more source

Universal dynamo paradigm for solar activity, Higgs fields and disasters [PDF]

EPJ Web of Conferences, 2021
There is still a problem of a correct and accurate description of the dynamo and its uses in various fields of physics. To solve this problem, a special and universal representation of dynamo is proposed.
Shevtsov Boris
doaj   +1 more source

Solar cycle variations in equatorial ionospheric zonal electric fields near sunrise

Earth and Planetary Physics, 2023
In this study, we investigate the solar cycle dependence of the sunrise ionospheric zonal electric fields at the equator under geomagnetically quiet conditions.
JunJie Chen, WenBin Wang, JiuHou Lei, Tong Dang   +3 more
doaj   +1 more source

The 8‐Year Solar Cycle During the Maunder Minimum

AGU Advances, 2023
The presence of grand minima, characterized by significantly reduced solar and stellar activity, brings a challenge to the understanding of solar and stellar dynamo. The Maunder Minimum (1645–1715 AD) is a representative grand solar minimum.
Limei Yan, Fei He, Xinan Yue, Yong Wei, Yuqi Wang, Si Chen, Kai Fan, Hui Tian, Jiansen He, Qiugang Zong, Lidong Xia   +10 more
doaj   +1 more source

Theoretical study of the ionospheric dynamo region inside the South Atlantic Anomaly

Earth and Planetary Physics, 2023
The South Atlantic Anomaly (SAA) is a region where the geomagnetic field is significantly lower than that of the surrounding area. On the basis of the models of CHAOS-7.8, Mass Spectrometer Incoherent Scatter Model (NRLMSISE-00), and International ...
SiQi Yi, XiaoJun Xu, ZiLu Zhou, Qing Chang, Xing Wang, Lei Luo, PeiShan He, Hui Li   +7 more
doaj   +1 more source