Observational Evidence of Shallow Origins for the Magnetic Fields of Solar Cycles
Frontiers in Astronomy and Space Sciences, 2018 Observational evidence for the origin of active region magnetic fields has been sought from published information on extended solar cycles, statistical distributions of active regions and ephemeral regions, helioseismology results, positional ...
Sara F. Martin
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Solar Cycle Indices from the Photosphere to the Corona: Measurements and Underlying Physics [PDF]
, 2014 Ilaria Ermolli +3 more
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Case Studies on Pre-eruptive X-class Flares using R-value in the Lower Solar Atmosphere
The Astrophysical JournalThe R -value is a measure of the strength of photospheric magnetic polarity inversion lines in active regions (ARs). This work investigates the possibility of a relation between R -value variations and the occurrence of X-class flares in ARs, not in the ...
Shreeyesh Biswal +5 more
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Annales GeophysicaeTwo aspects of solar MHD are discussed in relation to the work of the MHD simulation group at KIS. Photospheric magneto-convection, the nonlinear interaction of magnetic field and convection in a strongly stratified, radiating fluid, is a key process of ...
M. Schüssler
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Meridional Flow in the Solar Polar Caps Revealed by Magnetic Field Observation and Simulation
The Astrophysical JournalAs a large-scale motion on the Sun, the meridional flow plays an important role in determining magnetic structure and strength and solar cycle. However, the meridional flow near the solar poles is still unclear.
Shuhong Yang +12 more
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Horizontal magnetic fields in the solar photosphere
Astronomy Reports, 2009 15 pages, 7 figures, published by Astronomicheskii Zhurnal (in Russian) and Astronomy Reports (in English)
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The Plasma β in Quiet Sun Regions: Multi-instrument View
The Astrophysical JournalA joint campaign of several spaceborne and ground-based observatories, such as the GREGOR solar telescope, the Extreme-ultraviolet Imaging Spectrometer (EIS), and the Interface Region Imaging Spectrograph (Hinode Observing Plan 381, 2019 October 11–22 ...
Jenny M. Rodríguez-Gómez +6 more
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Erratum: "Making the Corona and the Fast Solar Wind: A Self-consistent Simulation for the Low-Frequency Alfvén Waves from Photosphere to 0.3 AU" ([URL ADDRESS="/cgi-bin/resolve?2005ApJ...632L..49S" STATUS="OKAY"]ApJ, 632, L49 [2005][/URL]) [PDF]
, 2006 Takeru K. Suzuki, Shu‐ichiro Inutsuka
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Variations of the Vector Magnetic Structures in the Solar Polar Regions Observed by Hinode
The Astrophysical JournalUsing the polar vector magnetic field data observed by Hinode from 2012 to 2021, we study the long-term variations of the magnetic flux, the flux proportion of different polarities, and the magnetic inclination with respect to the local normal in the ...
Shuhong Yang +9 more
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Meteoritics &Planetary Science, Volume 60, Issue 12, Page 2757-2758, December 2025.
wiley +1 more source