Results 41 to 50 of about 28,762 (292)
Introduction to Sunspots and Lotteries [PDF]
Journal of Economic Theory, 2002 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Edward C. Prescott, Karl Shell
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Chromosphere Activity Relation with Solar Dynamo Magnetic Activity Cycle [PDF]
Iranian Journal of Astronomy and Astrophysics, 2022 In this article, we analyzed the abnormal thickness of the chromosphere above the coronal holes (CH) at the poles of the Sun for 13 years (2010-2022), on the 15th of every month, by using AIA/SDO telescope data.
Ehsan Tavabi, Mina Rajabi, Sima Zeighami
doaj +1 more source
Numerical simulations of sunspots [PDF]
, 2006 The origin, structure and evolution of sunspots are investigated using a numerical model. The compressible MHD equations are solved with physical parameter values that approximate the top layer of the solar convection zone.
Hurlburt, Neal +2 more
core +1 more source
, 2022 This paper shows that belief-driven economic fluctuations are a general feature of many determinate macroeconomic models. In environments with hidden state variables, forecast-model misspecification can break the link between indeterminacy and sunspots ...
Zhu, Mei +5 more
core +1 more source
ON THE ROTATION OF SUNSPOTS AND THEIR MAGNETIC POLARITY [PDF]
, 2016 The rotation of sunspots of 2 yr in two different solar cycles is studied with the data from the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory and the Michelson Doppler Imager instrument on board the Solar and Heliospheric ...
Jian-Chuan Zheng +4 more
semanticscholar +1 more source
Statistical method to predict the sunspots number
NRIAG Journal of Astronomy and Geophysics, 2018 Sunspots are dark regions, it is appearing in the deepest layer of solar atmosphere “photosphere”, and the average number of sunspots has cycle every 11year approximately.
H. Abdel-Rahman, B. Marzouk
semanticscholar +1 more source
The Indeterminate Fate of Sunspots in Economics
History of Political Economy, 2018 In this paper, we use archival sources, interviews and bibliometrics to trace the development of a loose community interested in indeterminacy and sunspots, and we propose several explanations for this indeterminate fate of their models.
Béatrice Cherrier, Aurélien W. Saïdi
semanticscholar +1 more source
ON THE SOURCE OF PROPAGATING SLOW MAGNETOACOUSTIC WAVES IN SUNSPOTS [PDF]
, 2015 Recent high-resolution observations of sunspot oscillations using simultaneously operated ground- and space-based telescopes reveal the intrinsic connection between different layers of the solar atmosphere.
S. Prasad, D. Jess, E. Khomenko
semanticscholar +1 more source
Uniting the Sun’s Hale magnetic cycle and “extended solar cycle” paradigms
Frontiers in Astronomy and Space Sciences, 2022 Through meticulous daily observation of the Sun’s large-scale magnetic field the Wilcox Solar Observatory (WSO) has catalogued two magnetic (Hale) cycles of solar activity.
Scott W. McIntosh +4 more
doaj +1 more source
Multiple-scale Temporal Variability of Climatic Time Series in the Western Region of Iran [PDF]
Sustainable Earth Trends, 2023 The current research aims to carry out a multi-timescale variability analysis for the time series of sunspots (SN), precipitation (Pr), and maximum temperature (Tmax) in four main stations in the western area of Iran.
Abolfazl Neyestani
doaj +1 more source