Results 61 to 70 of about 871 (133)
The Uniturbulence and Alfvén Wave Solar Model (UAWSoM) in MPI-AMRVAC
Astronomy & AstrophysicsContext. The coronal heating problem and the generation of the solar wind remain fundamental challenges in solar physics. While approaches based on, e.g., the Alfvén Wave Solar Model (AWSoM) have proven highly successful in reproducing the large-scale ...
McMurdo M. +4 more
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
The Sun as a driver of the inner heliosphere: Modern investigations of fundamental plasma processes. [PDF]
Nat CommunErvin T, Nakhleh AJ, Bharati Das S.
europepmc +1 more source