Results 31 to 40 of about 10,165,445 (355)
Numerical Simulations of Flare-productive Active Regions: δ-sunspots, Sheared Polarity Inversion Lines, Energy Storage, and Predictions [PDF]
, 2017 Solar active regions (ARs) that produce strong flares and coronal mass ejections (CMEs) are known to have a relatively high non-potentiality and are characterized by δ-sunspots and sheared magnetic structures.
S. Toriumi, S. Takasao
semanticscholar +1 more source
Electric-current Neutralization, Magnetic Shear, and Eruptive Activity in Solar Active Regions [PDF]
, 2017 The physical conditions that determine whether or not solar active regions (ARs) produce strong flares and coronal mass ejections (CMEs) are not yet well understood.
Yang Liu +4 more
semanticscholar +1 more source
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
doaj +1 more source
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
doaj +1 more source
Non-neutralized Electric Currents in Solar Active Regions and Flare Productivity [PDF]
, 2017 We explore the association of non-neutralized currents with solar flare occurrence in a sizable sample of observations, aiming to show the potential of such currents in solar flare prediction.
I. Kontogiannis +3 more
semanticscholar +1 more source
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
doaj +1 more source
MAGNETIC PROPERTIES OF SOLAR ACTIVE REGIONS THAT GOVERN LARGE SOLAR FLARES AND ERUPTIONS [PDF]
, 2016 Solar flares and coronal mass ejections (CMEs), especially the larger ones, emanate from active regions (ARs). With the aim of understanding the magnetic properties that govern such flares and eruptions, we systematically survey all flare events with ...
S. Toriumi +4 more
semanticscholar +1 more source
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
doaj +1 more source
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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Global Dynamics of Subsurface Solar Active Regions [PDF]
, 2012 We present three-dimensional numerical simulations of a magnetic loop evolving in either a convectively stable or unstable rotating shell. The magnetic loop is introduced in the shell in such a way that it is buoyant only in a certain portion in ...
Aulanier, G., Brun, A. S., Jouve, L.
core +4 more sources