Results 141 to 150 of about 1,057 (192)

A magnetohydrodynamic mechanism for the formation of solar polar vortices. [PDF]

Proc Natl Acad Sci U S A
Dikpati M, Raphaldini B, McIntosh SW, Korsos MB, Guerrero GA, Gilman PA.   +5 more
europepmc   +1 more source

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   +1 more source

Tracing ancient solar cycles with tree rings and radiocarbon in the first millennium BCE. [PDF]

Nat Commun
Brehm N, Pearson CL, Christl M, Bayliss A, Nicolussi K, Pichler T, Brown D, Wacker L.   +7 more
europepmc   +1 more source

Joint Inversion of Radionuclide Production Rate Data and Thermoremanent Magnetic Records over the Holocene. [PDF]

Sol Phys
Schanner MA, Nilsson A, Muscheler R.
europepmc   +1 more source

Detrimental impact of solar and geomagnetic activity on plasma B-complex vitamins in the VA normative aging study cohort. [PDF]

Sci Rep
Zilli Vieira CL, Liu CS, Rudke AP, Wang Y, Wang VA, Schwartz JD, Vokonas P, Koutrakis P.   +7 more
europepmc   +1 more source

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The shape of the sunspot cycle

Solar Physics, 1994
The temporal behavior of a sunspot cycle, as described by the International sunspot numbers, can be represented by a simple function with four parameters: starting time, amplitude, rise time, and asymmetry. Of these, the parameter that governs the asymmetry between the rise to maximum and the fall to minimum is found to vary little from cycle to cycle ...
David Hathaway, Robert M Wilson, Hathaway David H   +2 more
exaly   +2 more sources

Sunspots and their cycle

Physics Today, 2023
These dark blemishes on stars are key to understanding the interaction of strong magnetic fields and dynamic plasma.
Jay M. Pasachoff, Daniel B. Seaton, Kevin P. Reardon   +2 more
openaire   +1 more source

Sunspots and Cycles

The Review of Economic Studies, 1986
Because sunspot equilibria seem to be of central importance for an understanding of rational expectations, we seek here to characterize completely a limited class of sunspot equilibria (stationary ones with two possible natural events) in the simplest overlapping generations model of production.
Azariadis, Costas, Guesnerie, Roger
openaire   +2 more sources