Results 81 to 90 of about 2,789 (225)
Kinetic Physics of the Solar Corona and Solar Wind
Living Reviews in Solar Physics, 2006 Kinetic plasma physics of the solar corona and solar wind are reviewed with emphasis on the theoretical understanding of the in situ measurements of solar wind particles and waves, as well as on the remote-sensing observations of the solar corona made by
Marsch Eckart
doaj
Simulation of Thermal Nonequilibrium Cycles in the Solar Wind
The Astrophysical JournalThermal nonequilibrium (TNE) is a condition of the plasma in the solar corona in which the local rate of energy loss due to radiation increases to the point that it cannot be sustained by the various heating terms acting on the plasma, precluding the ...
Roger B. Scott +3 more
doaj +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.Abstract We analyze the May 2024 geomagnetic storm using a unique longitudinal chain of Antarctic stations, including the new remote Talos Dome measurement site. By combining its high‐resolution magnetic data with observed values from coastal (Terra Nova Bay and Scott Base) and the polar‐cap (Dome C) observatories, Southern Hemisphere auroral indices ...
Lucia Santarelli +4 more
wiley +1 more source
Solar Coronal Heating: AC versus DC
The Astrophysical Journal, 1997 The heating of the plasma confined in active regions of the solar corona is caused by the dissipation of magnetic stresses induced by the photospheric motions of the loop footpoints. The aim of the present paper is to analyze whether solar coronal heating is dominated by slow (DC) or rapid (AC) photospheric driving motions.
Leonardo J. Milano +2 more
openaire +1 more source
Modeling the Propagation of Slow Magnetoacoustic Waves in a Multistranded Coronal Loop
The Astrophysical JournalWe study the propagation properties of slow magnetoacoustic waves in a multithermal coronal loop using a 3D MHD model, for the first time. A bundle of 33 vertical cylinders, each of 100 km radius, randomly distributed over a circular region of radius 1 ...
S. Krishna Prasad, T. Van Doorsselaere
doaj +1 more source
Extreme Value Analysis of Solar Green‐Line Corona During the Time Interval 1939–2025
Space Weather, Volume 24, Issue 5, May 2026.Abstract Predicting the probability of extreme solar events is critical to understanding how to mitigate risks associated with space weather disasters, as their occurrence can pose a threat to life and infrastructure on Earth or in near‐Earth orbit. In the present study, extreme value theory is applied to the daily modified coronal index (MCI) for the ...
Miao Wan +6 more
wiley +1 more source
Current sheets in the solar corona : formation, fragmentation and heating
, 2011 In this thesis we investigate current sheets in the solar corona. The well known 1D model for the tearing mode instability is presented, before progressing to 2D where we introduce a non-uniform resistivity.
Bowness, Ruth
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Atmospheric Heating Events Associated with Fine-scale Flux Emergence in Ephemeral Regions
The Astrophysical JournalCoronal heating has puzzled solar physicists for decades. The question of why the Sun’s upper atmosphere is significantly hotter than its lower atmosphere remains a key mystery.
Hanlin Yang, Jingxiu Wang, Chunlan Jin
doaj +1 more source
Space Weather, Volume 24, Issue 5, May 2026.Abstract This study evaluates 17 ionospheric models' performance over the Continental United States (CONUS) during the 2024 Mother's Day geomagnetic storm, using ground‐based GNSS Total Electron Content (TEC) and single‐frequency (SF) precise Single Point Positioning (SPP) technique. The storm produced significant positive storm effects during its main
Min‐Yang Chou +15 more
wiley +1 more source
Effect of structuring on coronal loop oscillations
, 2007 In this Thesis the theoretical understanding of oscillations in coronal structures is developed. In particular, coronal loops are modelled as magnetic slabs of plasma.
McEwan, Michael P.
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