Results 81 to 90 of about 860 (182)
A Unified Picture of Swirl-driven Solar Coronal Heating: Magnetic Energy Supply and Dissipation
The Astrophysical Journal LettersThe coronal heating problem is one of the most critical challenges in solar physics. Recent observations have revealed that small-scale swirls are ubiquitous in the photosphere and chromosphere, suggesting that they may play a significant role in ...
Hidetaka Kuniyoshi +2 more
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Reduced Thermal Conduction in Solar Coronal Loops
The Astrophysical JournalThermal conduction plays an important role in the energy balance of the solar coronal plasma. In this paper, we present a new method for deriving observational constraints on the density–temperature relationship for coronal loops from the differential ...
M. Asgari-Targhi, A. A. van Ballegooijen
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Source Materials and Heating of Alfvénic Slow and Hot Solar Wind Revealed by Heavy Ions
The Astrophysical JournalThis work quantitatively studies the differences of heavy ions among non-Alfvénic slow wind (N-ASSW), classical fast wind (FSW), and Alfvénic slow and hot wind (ASSW and AHSW) by effect size and Kolmogorov–Smirnov statistic.
Shuyi Meng, Shuo Yao
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Research Progress on Solar Supergranulation: Observations, Theories, and Numerical Simulations
UniverseSolar supergranulation is a large-scale convective structure on the solar surface, whose formation mechanism and dynamical properties are closely related to key physical processes such as solar magnetic field evolution, coronal heating, and solar wind ...
Chong Huang, Rui Wang
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Thread Separation and Expansion Observed in Multistranded Solar Coronal Loops
The Astrophysical JournalThe theoretical expectation that coronal loops should expand with height contrasts with observations that typically show constant cross sections. We investigate the idea that this discrepancy results from loops being composed of fine threads whose ...
David H. Brooks, Harry P. Warren
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The Astrophysical JournalWe report seven examples of a long-ignored type of confined solar flare eruption that does not fit the standard model for confined flare eruptions. Because they are confined eruptions, do not fit the standard model, and unexpectedly erupt in ostensibly ...
Ronald L. Moore +4 more
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Measurements of the Perpendicular Correlation Length of Coronal Alfvénic Waves with DKIST
The Astrophysical JournalWe have measured the perpendicular correlation length L _⊥ of Alfvénic waves in the corona using data from the Daniel K. Inouye Solar Telescope (DKIST) Cryogenic Near Infrared Spectropolarimeter (Cryo-NIRSP) instrument.
Michael Hahn +3 more
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Multiple Episodes of Remote Brightenings Driven by a Coronal Extreme-ultraviolet Jet on the Sun
The Astrophysical JournalRemote brightening (RB) is compact brightening at footpoints of magnetic loops, which are remotely connecting to and confining an eruption in the solar atmosphere.
Chao Zhang +10 more
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The Astrophysical Journal LettersCoronal cavities, often associated with prominences, are crucial structures in understanding coronal heating and the eruption mechanism of coronal mass ejections.
Chenxi Huangfu +7 more
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The Astrophysical JournalWe report on a flare-driven coronal rain event observed along postflare loops during the decay phase of an X1.6-class solar flare. Although high-resolution studies of flare-driven coronal rain have been conducted, imaging spectroscopic studies are rare ...
Donguk Song +8 more
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