Results 81 to 90 of about 972,333 (200)

Predicting Solar Cycle 24 With a Solar Dynamo Model [PDF]

, 2007
Whether or not the upcoming cycle 24 of solar activity will be strong is being hotly debated. The solar cycle is produced by a complex dynamo mechanism. We model the last few solar cycles by “feeding‿ observational data of the Sun's polar magnetic field ...
Piyali Chatterjee, Arnab Rai Choudhuri, Choudhuri, Arnab Rai, Jie Jiang, Chatterjee, Piyali, Jiang, Jie, Rai Choudhuri, Arnab   +6 more
core   +1 more source

Dynamo Confinement of a Radiatively Spreading Solar Tachocline Revealed by Self-consistent Global Simulations

The Astrophysical Journal Letters
The helioseismically observed solar tachocline is a thin internal boundary layer of shear that separates the rigidly rotating solar radiative zone from the differentially rotating convective zone and is believed to play a central role in the 22-yr solar ...
Loren I. Matilsky, Lydia Korre, Nicholas H. Brummell   +2 more
doaj   +1 more source

Some Recent Developments in Solar Dynamo Theory [PDF]

, 2006
We discuss the current status of solar dynamo theory and describe the dynamo model developed by our group. The toroidal magnetic field is generated in the tachocline by the strong differential rotation and rises to the solar surface due to magnetic ...
Choudhuri, Arnab Rai
core   +2 more sources

Solar dynamo [PDF]

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

A Synchronized Two-Dimensional α-Ω Model of the Solar Dynamo. [PDF]

Sol Phys, 2023
Klevs M, Stefani F, Jouve L.
europepmc   +1 more source

Production of Sunspots and Their Effects on the Corona and Solar Wind: Insights from a New 3D Flux-Transport Dynamo Model

Frontiers in Astronomy and Space Sciences, 2018
We present a three-dimensional numerical model for the generation and evolution of the magnetic field in the solar convection zone, in which sunspots are produced and contribute to the cyclic reversal of the large-scale magnetic field. We then assess the
Rohit Kumar, Laurène Jouve, Rui F. Pinto, Alexis P. Rouillard   +3 more
doaj   +1 more source

Investigating Variations in Solar Differential Rotation by Helioseismology

The Astrophysical Journal
Helioseismic signatures of dynamo waves have recently been discovered in variations of the solar differential rotation, offering valuable insights into the type of dynamo mechanism operating in the solar convection zone. To characterize these variations,
Krishnendu Mandal, Alexander G. Kosovichev, Valery V. Pipin, Sylvain G. Korzennik   +3 more
doaj   +1 more source

Magnetic twist: a source and property of space weather

Journal of Space Weather and Space Climate, 2012
Aim: We present evidence for finite magnetic helicity density in the heliosphere and numerical models thereof, and relate it to the magnetic field properties of the dynamo in the solar convection zone.
Mitra Dhrubaditya, Brandenburg Axel, Warnecke Jörn   +2 more
doaj   +1 more source

Observations of non-solar-type dynamo processes in stars with shallow convective zones [PDF]

, 2010
The magnetic field topology and differential rotation are fundamental signatures of the dynamo processes that generate the magnetic activity observed in the Sun and solar-type stars.
S. C. Marsden, Astrophysics, J.-F. Donati, S. V. Jeffers, Donati, J. -F., Donati, J.-F., E. Alecian, Alecian, E., Donati, J.F., Donati, J-F., Donati, Jean-François, Alecian, Evelyne, Jeffers, S.V., Marsden, S. C., Sub Experiment. Astrophysics begr 1/1/14, Jeffers, S. V., Marsden, S.C.   +16 more
core   +2 more sources

Long-term solar activity and its implications to the heliosphere, geomagnetic activity, and the Earth’s climate

Journal of Space Weather and Space Climate, 2013
The Sun’s long-term magnetic variability is the primary driver of space climate. This variability is manifested not only in the long-observed and dramatic change of magnetic fields on the solar surface, but also in the changing solar radiative output ...
Tanskanen Eija, Nandy Dibyendu, Manoharan Periasamy, Mursula Kalevi, Verronen Pekka   +4 more
doaj   +1 more source