Results 11 to 20 of about 5,860 (269)
Magnetic Structure of Sunspots [PDF]
Living Reviews in Solar Physics, 2011 In this review we give an overview about the current state-of-knowledge of the magnetic field in sunspots from an observational point of view. We start by offering a brief description of tools that are most commonly employed to infer the magnetic field ...
Juan M. Borrero, Kiyoshi Ichimoto
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Can Sunspot Activity Affect the Population Dynamics of Cotton Bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae)? [PDF]
InsectsWhether there is a correlation between sunspots and an impact on insects has long been a subject of debate. As a worldwide pest, the cotton bollworm can feed on a variety of plants and cause great harm to agriculture.
Jian Huang, Xiaojun Wang
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Complex Network Study of Solar Magnetograms [PDF]
Entropy, 2022 In this paper, we study solar magnetic activity by means of a complex network approach. A complex network was built based on information on the space and time evolution of sunspots provided by image recognition algorithms on solar magnetograms taken ...
Víctor Muñoz, Eduardo Flández
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The transition region above sunspots
Geoscience Letters, 2018 Over decades, sunspots and their fine structures have been studied in detail at the photospheric level with different ground-based telescopes, as the surface of the Sun primarily emits light in the visible wavelengths.
Hui Tian, Tanmoy Samanta, Jingwen Zhang
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, 2023 Taking as its starting point the distinctive megalithic remains of the Neolithic and Bronze Age, Sunspots is a carefully edited long-term photographic study of these fragile rural landscapes where the meaning and belonging of everything feels contested.
Arnold, William
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, 2010 Galileo's telescopic discoveries, and especially his observation of sunspots, caused great debate in an age when the heavens were thought to be perfect and unchanging. Christoph Scheiner, a Jesuit mathematician, argued that sunspots were planets or moons
Galileo Galilei +5 more
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Differential Rotation of Individual Sunspots and Pores
The Astrophysical JournalThe analysis of the rotation rate of individual sunspots and pores was performed according to the data from the processing of observations by the Solar Dynamics Observatory/Helioseismic and Magnetic Imager in the period 2010–2024.
Andrey G. Tlatov, Kseniya A. Tlatova
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Locally weighted regression for sunspots estimation and prediction [PDF]
المجلة العراقية للعلوم الاحصائية, 2022 Locally weighted regression (LOESS) is a modern non-parametric regression method designed for treating cases where classical procedures are not highly efficient or cannot applied efficiently.
Ibtehal Fadel, Muzahem Al-Hashimi
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Are currency crises self-fulfilling? The case of Argentina [PDF]
, 2002 This paper analyzes the 2002 Argentine crisis using the Jeanne and Masson (2000) model with sunspots. Testing this model empirically through a Markov-switching model suggests that self-sulfilling prophecies is a reasonable explanation for the ...
Napolitano, O, Spagnolo, N, Boinet, V
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Relations Among Sunspots, CMEs and Geomagnetic Storms in Solar Cycle 23 [PDF]
Journal of Astronomy and Space Sciences, 2009 We compare the relation among the annual distribution of sunspots: coronal mass ejections (CMEs) and geomagnetic storms and North-South asymmetry during solar cycle 23.
Su-Lyun Rho, Heon-Young Chang
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