Results 201 to 210 of about 3,439,333 (263)

Hemispheric asymmetry in meridional flow and the sunspot cycle

Monthly notices of the Royal Astronomical Society, 2019
Magnetohydrodynamic dynamo modelling shows that the large-scale solar meridional plasma flow plays an important role in governing the dynamics of the sunspot cycle.
B. Lekshmi, D. Nandy, H. M. Antia
semanticscholar   +1 more source

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

Skills, Sunspots and Cycles

SSRN Electronic Journal, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
MARCHETTI, Enrico, BUSATO, Francesco
openaire   +3 more sources

Group Sunspot Numbers: Sunspot Cycle Characteristics

Solar Physics, 2002
We examine the "Group" sunspot numbers constructed by Hoyt and Schatten to determine their utility in characterizing the solar activity cycle. We compare smoothed monthly Group Sunspot Numbers to Zurich (International) Sunspot Numbers, 10.7-cm radio flux, and total sunspot area.
David H. Hathaway, Robert M. Wilson, Edwin J. Reichmann   +2 more
openaire   +1 more source

Solar-Cycle Characteristics in Kodaikanal Sunspot Area: North–South Asymmetry, Phase Distribution and Gnevyshev Gap

, 2020
Solar activity is asymmetric in the two hemispheres in almost all cycles. This asymmetry is observed both in cycle amplitude and period. We have used about 90 years of sunspot-area data from the Kodaikanal Solar Observatory to study the north–south ...
B. Ravindra, P. Chowdhury, J. Javaraiah
semanticscholar   +1 more source

The irregularities of the sunspot cycle and their theoretical modelling

, 2013
The 11-year sunspot cycle has many irregularities, the most prominent amongst them being the grand minima when sunspots may not be seen for several cycles.
A. Choudhuri
semanticscholar   +1 more source

Sunspot-Cycle Evolution of Major Periodicities of Solar Activity

Solar Physics, 2022
G. L. Jayalekshmi, T. Pant, P. Prince
semanticscholar   +1 more source

Cycles and sunspot: The Poincaré-Hopf approach

Journal of Mathematical Economics, 1996
This paper deals with the existence of stationary sunspot equilibria (SSE) of finite order in an n-commodity economy. We first provide a simple condition that is sufficient for the existence of SSE associated with any given Markov matrix. This condition encompasses and extends previous results by Guesnerie (Journal of Economic Theory, 1986, 40, 103–128)
Chiappori, Pierre-Andre, Davila, Julio
openaire   +3 more sources

Polar faculae and sunspot cycles

Solar Physics, 1996
The monthly number of polar faculae of the Sun were determined from white-light images at spectral band λ(eff) = (4100 ± 200) A obtained at the Kislovodsk Solar Station during 1960–1994. Corrected monthly numbers were obtained with the help of the visibility function.
V.I. Makarov, V.V. Makarova
openaire   +1 more source

Sunspots Rotation Rate and Sunspot Cycle

2005
International ...
Mouradian, Zadig, Heristchi, Djamshid
openaire   +1 more source