Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Fedun, Viktor"'
Magnetic flux tubes in the presence of background rotational flows, known as solar vortex tubes, are abundant throughout the solar atmosphere and may act as conduits for MHD waves to transport magnetic energy to the upper solar atmosphere. We aim to
Externí odkaz:
http://arxiv.org/abs/2410.05204
Autor:
Schiavo, Luiz A. C. A., Gordovskyy, Mykola, Browning, Philippa K., Silva, Suzana S. A., Verth, Gary, Ballai, Istvan, Shelyag, Sergiy, Ruzheinikov, Sergey N., McLaughlin, James A., Fedun, Viktor
Publikováno v:
ApJ 975 (2024) 45
Solar pores are ideal magnetic structures for wave propagation and transport of energy radially-outwards across the upper layers of the solar atmosphere. We aim to model the excitation and propagation of magnetohydrodynamic waves in a pore with a lig
Externí odkaz:
http://arxiv.org/abs/2409.15106
We present an analytical model of the self-consistent equilibrium of a magnetic flux rope which is obtained in cylindrical geometry. The equilibrium azimuthal magnetic field and plasma pressure are determined in a self-consistent way through the curr
Externí odkaz:
http://arxiv.org/abs/2402.10804
Phase mixing of Alfven waves is one of the most promising mechanisms for heating of the solar atmosphere. The damping of waves in this case requires small transversal scales, relative to the magnetic field direction. Here this requirement is achieved
Externí odkaz:
http://arxiv.org/abs/2311.02989
Autor:
Skirvin, Samuel, Fedun, Viktor, Silva, Suzana, Van Doorsselaere, Tom, Claes, Niels, Goossens, Marcel, Verth, Gary
Magnetoacoustic waves in solar magnetic flux tubes may be affected by the presence of background rotational flows. Here, we investigate the behaviour of $m=0$ and $m=\pm 1$ modes of a magnetic flux tube in the presence of linear background rotational
Externí odkaz:
http://arxiv.org/abs/2212.00379
In this study we explore the possibility of simplifying the modeling of magnetohydrodynamic (MHD) slow body modes observed in photospheric magnetic structure such as the umbrae of sunspots and pores. The simplifying approach assumes that the variatio
Externí odkaz:
http://arxiv.org/abs/2209.04689
Autor:
Skirvin, Samuel, Verth, Gary, González-Avilés, José Juan, Shelyag, Sergiy, Sharma, Rahul, Guzmán, Fransisco, Ballai, Istvan, Scullion, Eamon, Silva, Suzana S. A., Fedun, Viktor
Studies on small-scale jets' formation, propagation, evolution, and role, such as type I and II spicules, mottles, and fibrils in the lower solar atmosphere's energetic balance, have progressed tremendously thanks to the combination of detailed obser
Externí odkaz:
http://arxiv.org/abs/2205.09598
Autor:
Silva, Suzana S. A., Murabito, Mariarita, Jafarzadeh, Shahin, Stangliani, Marco, Verth, Gary, Ballai, Istvan, Fedun, Viktor
The electromagnetic energy flux in the lower atmosphere of the Sun is a key tool to describe the energy balance of the solar atmosphere. Current investigations on energy flux in the solar atmosphere focus primarily on the vertical electromagnetic flu
Externí odkaz:
http://arxiv.org/abs/2203.01221
Autor:
Aljohani, Yasir, Fedun, Viktor, Ballai, Istvan, Silva, Suzana S. A., Shelyag, Sergiy, Verth, Gary
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 understanding the nature of physical processes responsible for vortex dynamics. H
Externí odkaz:
http://arxiv.org/abs/2202.09332
Magnetohydrodynamic (MHD) waves are routinely observed in the solar atmosphere. These waves are important in the context of solar physics as it is widely believed they can contribute to the energy budget of the solar atmosphere and are a prime candid
Externí odkaz:
http://arxiv.org/abs/2112.04427