Zobrazeno 1 - 10
of 456
pro vyhledávání: '"Nakariakov, V."'
Publikováno v:
A&A 677, A23 (2023)
We compute the evidence in favour of two models, one based on field-aligned thermal conduction alone and another that includes thermal misbalance as well, in explaining the damping of slow magneto-acoustic waves in hot coronal loops. Our analysis is
Externí odkaz:
http://arxiv.org/abs/2307.02439
Autor:
Bate, W., Jess, D. B., Nakariakov, V. M., Grant, S. D. T., Jafarzadeh, S., Stangalini, M., Keys, P. H., Christian, D. J., Keenan, F. P.
Using high cadence observations from the Hydrogen-alpha Rapid Dynamics camera imaging system on the Dunn Solar Telescope, we present an investigation of the statistical properties of transverse oscillations in spicules captured above the solar limb.
Externí odkaz:
http://arxiv.org/abs/2203.04997
Publikováno v:
A&A 659, A73 (2022)
Context. Kink waves are routinely observed in coronal loops. Resonant absorption is a well-accepted mechanism that extracts energy from kink waves. Nonlinear kink waves are know to be affected by the Kelvin-Helmholtz instability. However, all previou
Externí odkaz:
http://arxiv.org/abs/2112.14951
The presence and interplay of continuous cooling and heating processes maintaining the corona of the Sun at the observed one million K temperature were recently understood to have crucial effects on the dynamics and stability of magnetoacoustic waves
Externí odkaz:
http://arxiv.org/abs/2111.02370
Autor:
Nakariakov, V. M., Anfinogentov, S. A., Antolin, P., Jain, R., Kolotkov, D. Y., Kupriyanova, E. G., Li, D., Magyar, N., Nistico, G., Pascoe, D. J., Srivastava, A. K., Terradas, J., Farahani, S. Vashegani, Verth, G., Yuan, D., Zimovets, I. V.
Publikováno v:
Space Science Reviews, 2021, Volume 217, Issue 6, article id.73
Kink oscillations of coronal loops, i.e., standing kink waves, is one of the most studied dynamic phenomena in the solar corona. The oscillations are excited by impulsive energy releases, such as low coronal eruptions. Typical periods of the oscillat
Externí odkaz:
http://arxiv.org/abs/2109.11220
Autor:
Magyar, N., Nakariakov, V. M.
In the near future, Parker Solar Probe will put theories about the dynamics and nature of the transition between the solar corona and the solar wind to stringent tests. The most popular mechanism aimed to explain the dynamics of the nascent solar win
Externí odkaz:
http://arxiv.org/abs/2012.00811
Publikováno v:
A&A 646, A155 (2021)
Slow magnetoacoustic waves are routinely observed in astrophysical plasma systems such as the solar corona. As a slow wave propagates through a plasma, it modifies the equilibrium quantities of density, temperature, and magnetic field. In the corona
Externí odkaz:
http://arxiv.org/abs/2011.10437
Publikováno v:
A&A 644, A33 (2020)
The hot solar corona exists because of the balance between radiative and conductive cooling and some counteracting heating mechanism which remains one of the major puzzles in solar physics. The coronal thermal equilibrium is perturbed by magnetoacous
Externí odkaz:
http://arxiv.org/abs/2010.03364
Autor:
Magyar, N., Nakariakov, V. M.
Using full three-dimensional magnetohydrodynamic numerical simulations, we study the effects of magnetic field sigmoidity or helicity on the properties of the fundamental kink oscillation of solar coronal loops. Our model consists of a single denser
Externí odkaz:
http://arxiv.org/abs/2004.14083
Autor:
Yu, D. J., Nakariakov, V. M.
Publikováno v:
ApJ 896, 21 (2020)
Negative energy wave phenomena may appear in shear flows in the presence of a wave decay mechanism and external energy supply. We study the appearance of negative energy surface waves in a plasma cylinder in the incompressible limit. The cylinder is
Externí odkaz:
http://arxiv.org/abs/2004.13552