48 citations · 110 across the 3 of their papers we have counts for
6 papers
New approach for analysing dynamical processes on the surface of photospheric vortex tubes
Yasir Aljohani, Viktor Fedun, Istvan Ballai +3
The majority of studies on multi-scale vortex motions employ a two-dimensional geometry by using a variety of observational and numerical data. This approach limits the understandi…
Solar Vortex Tubes: Vortex Dynamics in the Solar Atmosphere
Suzana S. A. Silva, Viktor Fedun, Gary Verth +2
In this work, a state-of-the-art vortex detection method, Instantaneous Vorticity Deviation, is applied to locate three-dimensional vortex tube boundaries in numerical simulations…
Stellar Surface Magneto-Convection as a Source of Astrophysical Noise III. Sun-as-a-star Simulations and Optimal Noise Diagnostics
H. M. Cegla, C. A. Watson, S. Shelyag +2
Stellar surface magnetoconvection (granulation) creates asymmetries in the observed stellar absorption lines that can subsequently manifest themselves as spurious radial velocities…
Stellar Surface Magneto-Convection as a Source of Astrophysical Noise II. Center-to-Limb Parameterisation of Absorption Line Profiles and Comparison to Observations
H. M. Cegla, C. A. Watson, S. Shelyag +6
Manifestations of stellar activity (such as star-spots, plage/faculae, and convective flows) are well known to induce spectroscopic signals often referred to as astrophysical noise…
Analysis of 3D plasma motions in a chromospheric jet formed due to magnetic reconnection
J. J. González-Avilés, F. S. Guzmán, V. Fedun +4
Within the framework of resistive MHD, implementing the C7 equilibrium atmosphere model and a 3D potential magnetic field realistic configuration, we simulate the formation of a pl…
Ellerman Bombs with Jets: Cause and Effect
A. Reid, M. Mathioudakis, E. Scullion +3
Ellerman Bombs (EBs) are thought to arise as a result of photospheric magnetic reconnection. We use data from the Swedish 1-m Solar Telescope (SST), to study EB events on the solar…