Zobrazeno 1 - 10
of 135
pro vyhledávání: '"Arregui, Iñigo"'
Autor:
Arregui, Iñigo, Van Doorsselaere, Tom
Coronal heating refers to the physical processes that shape and structure the corona of the Sun and are responsible for its multi-million Kelvin temperatures. These processes are revealed in a number of different observational manifestations and have
Externí odkaz:
http://arxiv.org/abs/2409.13318
Publikováno v:
The Astrophysical Journal, 2024, 963, 69
Estimating the magnetic field strength in the solar corona is crucial for understanding different physical processes happening over diverse spatio-temporal scales. However, the high temperatures and low density of the solar corona make this task chal
Externí odkaz:
http://arxiv.org/abs/2401.05022
Magnetohydrodynamic kink waves naturally form as a consequence of perturbations to a structured medium, for example transverse oscillations of coronal loops. Linear theory has provided many insights in the evolution of linear oscillations, and result
Externí odkaz:
http://arxiv.org/abs/2308.02217
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 2023, Volume 520, Issue 2, pp.1738-1747
In many astrophysical systems, mixing between cool and hot temperature gas/plasma through Kelvin-Helmholtz-instability-driven turbulence leads to the formation of an intermediate temperature phase with increased radiative losses that drive efficient
Externí odkaz:
http://arxiv.org/abs/2302.07364
Publikováno v:
In Communications in Nonlinear Science and Numerical Simulation March 2024 130
Autor:
Van Doorsselaere, Tom, Srivastava, Abhishek K., Antolin, Patrick, Magyar, Norbert, Farahani, Soheil Vasheghani, Tian, Hui, Kolotkov, Dmitrii Y., Ofman, Leon, Guo, Mingzhe, Arregui, Iñigo, De Moortel, Ineke, Pascoe, David
The heating of the solar chromosphere and corona to the observed high temperatures, imply the presence of ongoing heating that balances the strong radiative and thermal conduction losses expected in the solar atmosphere. It has been theorized for dec
Externí odkaz:
http://arxiv.org/abs/2012.01371
Autor:
Hillier, Andrew, Arregui, Inigo
Recent observations show cool, oscillating prominence threads fading when observed in cool spectral lines and appearing in warm spectral lines. A proposed mechanism to explain this evolution is that the threads were heated by turbulence driven by the
Externí odkaz:
http://arxiv.org/abs/1909.11351
Publikováno v:
A&A 629, A20 (2019)
Some high-resolution observations have revealed that the active-region solar corona is filled with myriads of thin strands even in apparently uniform regions with no resolved loops. This fine structure can host collective oscillations involving a lar
Externí odkaz:
http://arxiv.org/abs/1907.05212
Autor:
Arregui, Inigo, Goossens, Marcel
Publikováno v:
A&A 622, A44 (2019)
The aim of this paper is to point out that the classic seismological problem using observations and theoretical expressions for the periods and damping times of transverse standing magnetohydrodynamic (MHD) waves in coronal loops is better referred t
Externí odkaz:
http://arxiv.org/abs/1812.07266
The Kelvin-Helmholtz instability has been proposed as a mechanism to extract energy from magnetohydrodynamic (MHD) kink waves in flux tubes, and to drive dissipation of this wave energy through turbulence. It is therefore a potentially important proc
Externí odkaz:
http://arxiv.org/abs/1810.02773