Results 11 to 20 of about 1,222,295 (266)
The Sun’s Supergranulation [PDF]
Living Reviews in Solar Physics, 2010 Supergranulation is a fluid-dynamical phenomenon taking place in the solar photosphere, primarily detected in the form of a vigorous cellular flow pattern with a typical horizontal scale of approximately 30--35~megameters, a dynamical evolution time of 24--48~h, a strong 300--400~m/s (rms) horizontal flow component and a much weaker 20--30~m/s vertical
Rincon, Francois, Rieutord, Michel
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The EUV Sun as the superposition of elementary Suns [PDF]
Astronomy & Astrophysics, 2008 Many studies assume that the solar irradiance in the EUV can be decomposed into different contributions, which makes the modelling of the spectral variability considerably easier. We consider a different approach, in which these contributions are not imposed a priori but are effectively and robustly inferred from spectral irradiance measurements.
Amblard, Pierre-Olivier +6 more
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Contemporary Icarus: Gustav von Aschenbach’s Journey towards the Sun
Czytanie Literatury, 2020 The point of departure for the reflections contained in this article is the motif of the sun in Tomasz Mann’s Death in Venice. Analysing the presence of the sun in the work turns out to be fruitful for distinguishing and connecting several symbolic ...
Anna Sieradzan
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Astronomical features of Ural megalithic monuments orientation [PDF]
Archaeoastronomy and Ancient Technologies, 2014 There is a presence of archaeological monuments of the early and middle Holocene in the middle Trans-Urals, which may be associated with the act of sky survey, determined by this specific landscape.
Viktorova, V.D., Anisimov, N.P.
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Sudden transitions and grand variations in the solar dynamo, past and future☆
Journal of Space Weather and Space Climate, 2012 The solar dynamo is the exotic dance of the sun’s two major magnetic field components, the poloidal and the toroidal, interacting in anti-phase. On the basis of new data on the geomagnetic aa index, we improve our previous forecast of the properties of ...
De Jager Cornelis, Duhau Silvia
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The fine structure of the rotational periods of the solar mean magnetic field
Open Astronomy, 2021 The data of mean magnetic field (MMF) of the Sun obtained at the Wilcox Solar Observatory (Stanford, USA) in 1975–2020 are analysed. It was concluded that the MMF maximum occurs, on average, 1.5–2 years later relative to the maximum of Wolf numbers.
Haneychuk Vasily Ivanovich +1 more
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Influence of cosmic factors on mud volcanic activity of the Earth [PDF]
Геосистемы переходных зон, 2023 In this work, the influence of various cosmic factors (gravitational influence of the Moon and the Sun, solar activity, the Earth’s rotation) on mud volcanic activity was analyzed for the first time. The analysis was carried out mainly on the example of
Gennady V. Ustyugov, Valery V. Ershov
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POLAR investigation of the Sun—POLARIS [PDF]
, 2008 The POLAR Investigation of the Sun (POLARIS) mission uses a combination of a gravity assist and solar sail propulsion to place a spacecraft in a 0.48 AU circular orbit around the Sun with an inclination of 75° with respect to solar equator.
Appourchaux, Thierry +74 more
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Isolated Sunspot with a Dark Patch in the Coronal Emission
Open Astronomy, 2012 On the base of the 17 GHz radio maps of the Sun taken with the Nobeyama Radio Heliograph we estimate plasma parameters in the specific region of the sunspot atmosphere in the active region AR 11312.
Bezrukov D. A. +2 more
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