Results 91 to 100 of about 3,903 (221)
Exploring Solar Granulation: from IMaX/SUNRISE to DKIST
Proceedings of the International Florida Artificial Intelligence Research Society ConferenceGranules are small cellular structures that populate the solar photosphere and are formed by the dynamic behavior of convection cells. This constant motion generates an evolving pattern of diverse granule types and intergranular regions across the ...
Reza Mansouri +2 more
doaj +1 more source
The propagation and damping of slow magnetoacoustic waves in the solar atmosphere [PDF]
, 2012 The propagation and damping of slow magnetoacoustic waves in the solar atmosphere is investigated, with particular emphasis placed on waves with periodicities of five minutes. The basic model of a uniform temperature loop is extended by the addition of
Owen, Nicholas Robert
core
The Astrophysical JournalThe ubiquitous 5 minute solar p -mode oscillations, excited at the photosphere, play a crucial role in driving various coronal instabilities and mediating upward energy transport. These modes are strongly influenced by nonthermal electron populations. To
Souvik Das, Pralay Kumar Karmakar
doaj +1 more source
Origin of Line Broadening in Fading Granules: Influence of Small-scale Turbulence
The Astrophysical JournalIn the quiet region of the solar photosphere, turbulent convective motions of the granular flows naturally drive the subgranular-scale flows. However, evaluating such small-scale velocities is challenging because of the limited instrumental resolution ...
Ryohtaroh T. Ishikawa, Yukio Katsukawa
doaj +1 more source
Assessment of DKIST/VTF capabilities for the detection of local acoustic source wavefronts
Frontiers in Astronomy and Space SciencesIntroductionRecent studies have demonstrated that temporal filtering can successfully identify local acoustic source wavefronts in radiative magnetohydrodynamic simulations of the solar photosphere.
Corinne Morrell +6 more
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Predicting Solar Sigmoid Lifetimes Based on Shearing in the Photosphere [PDF]
, 2015 This project’s purpose was to study how the speed at which the plasma in the photosphere of the sun affects the lifetime and shape of a solar sigmoid. Solar sigmoids are S-shaped, twisted magnetic structures that are due to the shifting magnetic field ...
Stone, Austen
core +1 more source
Inferring Photospheric Horizontal Flows from Multiple Observations with SUVEL Models
The Astrophysical JournalPhotospheric horizontal velocity fields play essential roles in the formation and evolution of numerous solar activities. Various methods for estimating the horizontal velocity field have been proposed in the past.
Quan Xie +3 more
doaj +1 more source
The origin of the reversed granulation in the solar photosphere [PDF]
, 2006 Aims.We study the structure and reveal the physical nature of the reversed granulation pattern in the solar photosphere by means of 3-dimensional radiative hydrodynamics simulations.
F. Moreno-Insertis +2 more
core +1 more source
Vorticity in the solar photosphere [PDF]
, 2011 Aims: We use magnetic and non-magnetic 3D numerical simulations of solar granulation and G-band radiative diagnostics from the resulting models to analyse the generation of small-scale vortex motions in the solar photosphere.Methods: Radiative MHD ...
Sergiy Shelyag (13094397) +3 more
core
Refinements to the Solar Polar Magnetic Flux: Implications from Inversion Methodologies
The Astrophysical JournalThe magnetic fields in the solar polar region are important to our understanding of the internal dynamo process, the global coronal structure, and the origin of the solar wind.
Bryan Yamashiro +8 more
doaj +1 more source