Results 11 to 20 of about 22,416 (198)

Models for the long-term variations of solar activity

Living Reviews in Solar Physics, 2023
One obvious feature of the solar cycle is its variation from one cycle to another. In this article, we review the dynamo models for the long-term variations of the solar cycle.
Bidya Binay Karak
doaj   +2 more sources

Solar-type dynamo behaviour in fully convective stars without a tachocline [PDF]

Nature, 2016
In solar-type stars (with radiative cores and convective envelopes), the magnetic field powers star spots, flares and other solar phenomena, as well as chromospheric and coronal emission at ultraviolet to X-ray wavelengths.
A Brandenburg, A Fruscione, A Muñoz-Jaramillo, AA Pevtsov, AA West, AN Cox, BP Brown, BR Durney, C Garraffo, CM Johns-Krull, DJ Mullan, DL Moss, EA Speigel, EN Parker, EN Parker, ER Newton, G Guerrero, GF Benedict, GP Garmire, GS Vaiana, HC Spruit, HW Babcock, IN Reid, J Irwin, JD Kirkpatrick, Jeremy J. Drake, JHMM Schmitt, KA Arnauld, KL Cruz, M Dikpati, M Kiraga, MC Weisskopf, MK Browning, MK Browning, MS Bessell, Nicholas J. Wright, NJ Nelson, NJ Wright, O Vilhu, P Charbonneau, R Pallavicini, RD Jeffries, RK Smith, RW Noyes, W Cash, W Dobler, Y Fan   +46 more
core   +4 more sources

Dynamo Models of the Solar Cycle

Living Reviews in Solar Physics, 2010
This paper reviews recent advances and current debates in modeling the solar cycle as a hydromagnetic dynamo process. Emphasis is placed on (relatively) simple dynamo models that are nonetheless detailed enough to be comparable to solar cycle ...
Paul Charbonneau
doaj   +2 more sources

Dynamo Models of the Solar Cycle

Living Reviews in Solar Physics, 2005
This paper reviews recent advances and current debates in modeling the solar cycle as a hydromagnetic dynamo process. Emphasis is placed on (relatively) simple dynamo models that are nonetheless detailed enough to be comparable to solar cycle ...
Charbonneau Paul
doaj   +2 more sources

The Global Solar Dynamo [PDF]

Space Science Reviews, 2016
A brief summary of the various observations and constraints that underlie solar dynamo research are presented. The arguments that indicate that the solar dynamo is an alpha-omega dynamo of the Babcock-Leighton type are then shortly reviewed. The main open questions that remain are concerned with the subsurface dynamics, including why sunspots emerge at
Cameron, R., Dikpati, M., Brandenburg, A.   +2 more
openaire   +5 more sources

The solar dynamo begins near the surface. [PDF]

Nature
Vasil GM, Lecoanet D, Augustson K, Burns KJ, Oishi JS, Brown BP, Brummell N, Julien K.   +7 more
europepmc   +2 more sources

Nonlinearity, time delay, and Grand Maxima in supercritical Babcock-Leighton dynamos

Journal of Space Weather and Space Climate, 2023
The physical origin of centennial and millennial-scale variations in solar activity remains ill-understood. Although stochastic fluctuations of the solar dynamo are unavoidable in view of the turbulent nature of the solar convection zone, the ...
Thibeault Christian, Miara Loïc, Charbonneau Paul   +2 more
doaj   +1 more source

The role of the bow shock in solar wind-magnetosphere coupling [PDF]

Annales Geophysicae, 2011
In this paper we examine the role of the bow shock in coupling solar wind energy to the magnetosphere using global magnetohydrodynamic simulations of the solar wind-magnetosphere interaction with southward IMF.
R. E. Lopez, V. G. Merkin, J. G. Lyon
doaj   +1 more source

Magnetic Cycles in a Convective Dynamo Simulation of a Young Solar-type Star [PDF]

, 2011
Young solar-type stars rotate rapidly and many are magnetically active; some undergo magnetic cycles similar to the 22-year solar activity cycle. We conduct simulations of dynamo action in rapidly rotating suns with the 3D MHD anelastic spherical ...
Allan Sacha Brun, Arfken, Ballot, Benjamin P. Brown, Brown, Brown, Browning, Browning, Brun, Brun, Brun, Charbonneau, Charbonneau, Cline, Cline, Clyne, Dikpati, Dikpati, Featherstone, Ghizaru, Hall, Hempelmann, Jouve, Juri Toomre, Lanza, Mark S. Miesch, Matt, Matthew K. Browning, Metcalfe, Miesch, Miesch, Miesch, Mitra, Moreno-Insertis, Muñoz-Jaramillo, Nandy, Rempel, Rempel, Rempel, Rempel, Saar, Spruit, Stix, Yeates   +43 more
core   +9 more sources

Oscillator models of the solar cycle: Towards the development of inversion methods [PDF]

, 2014
This article reviews some of the leading results obtained in solar dynamo physics by using temporal oscillator models as a tool to interpret observational data and dynamo model predictions.
Lopes, Ilídio, Nagy, Melinda, Passos, Dário, Petrovay, Kristof   +3 more
core   +2 more sources