Results 11 to 20 of about 1,351,620 (240)
Incorporating polar field data for improved solar flare prediction
Frontiers in Astronomy and Space Sciences, 2022 In this paper, we consider incorporating data associated with the sun’s north and south polar field strengths to improve solar flare prediction performance using machine learning models.
Mehmet Aktukmak +7 more
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Active longitudes and the structure of the large-scale magnetic field at solar minimum
Solar-Terrestrial Physics, 2023 We have studied deep minima of 11-year solar activity cycles 13–14, 14–15, 22–23, 23–24, 24–25, using the RGO and USAF/NOAA sunspot group catalogs. All of them have a large number of spotless days. Nonetheless, active longitudes as preferred zones, where
Grigoryev V. M., Ermakova L. V.
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BMC Complementary and Alternative Medicine, 2017 Background In recent decades, the evidence supporting the physical and mental health benefits of holistic movement practices such as yoga and t’ai chi have become increasingly established.
Ineke Vergeer +6 more
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Incoherent Solar Radio Emission
Frontiers in Astronomy and Space Sciences, 2020 Incoherent solar radio radiation comes from the free-free, gyroresonance, and gyrosynchrotron emission mechanisms. Free-free is primarily produced from Coulomb collisions between thermal electrons and ions.
Alexander Nindos
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International Journal of Behavioral Nutrition and Physical Activity, 2019 Background The World Health Organization’s ‘Global Recommendations on Physical Activity for Health’ state that adults should engage in regular moderate-to-vigorous intensity aerobic physical activity (MVPA; e.g.
Jason A. Bennie +4 more
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Seismology of active regions: Current status and perspectives
Frontiers in Astronomy and Space Sciences, 2023 The goal of helioseismology is to provide accurate information about the Sun’s interior from the observations of the wave field at its surface. In the last three decades, both global and local helioseismology studies have made significant advances and ...
Sushanta Tripathy
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Magnetohydrodynamics of an active region [PDF]
Symposium - International Astronomical Union, 1968 The dynamics of the magnetic fields which are imbedded into the non-stationary outer layers of the Sun show many facets of interest to observers and theoreticians alike. In a short review I can only deal with a small number of them and occasionally glance at some others.
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Prominences in Active Regions [PDF]
Symposium - International Astronomical Union, 1968 As an interplay of plasma and magnetic field the solar prominences represent a nice example of cosmical hydromagnetics. Due to stronger magnetic fields in active regions the prominence processes are more violent there than in non-active regions. Observing with a coronagraph or watching prominence movies one recognizes some characteristic processes in ...
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Probing the rotation rate of solar active regions: the comparison of methods
Open Astronomy, 2022 Sunspot groups are often used as tracers to probe the differential rotation of the Sun. However, the results on the rotation rate variation obtained by different authors are not always in agreement. The reason for this might be a number of effects.
Kutsenko Alexander S. +1 more
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Solar Physics, 1970 <p>Published - <a href="/records/3vtm5-qqc59/files/1970SoPh___14__328Z.pdf?download=1">1970SoPh___14__328Z.pdf</a></p>
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