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Transverse oscillations of thin threads in solar prominences are frequently reported in high-resolution observations. Two typical features of the observations are that the oscillations are damped in time and that simultaneous mass flows…

Solar and Stellar Astrophysics · Physics 2015-06-11 R. Soler , M. S. Ruderman , M. Goossens

Transverse oscillations and propagating waves are frequently observed in threads of solar prominences/filaments and have been interpreted as kink magnetohydrodynamic (MHD) modes. We investigate the spatial damping of propagating kink MHD…

Solar and Stellar Astrophysics · Physics 2015-05-20 R. Soler , R. Oliver , J. L. Ballester

Prominence threads are very long and thin flux tubes which are partially filled with cold plasma. Observations have shown that transverse oscillations are frequent in these solar structures. The observations are usually interpreted as the…

Solar and Stellar Astrophysics · Physics 2022-02-09 David Martínez-Gómez , Roberto Soler , Jaume Terradas , Elena Khomenko

We investigate standing kink magnetohydrodynamic (MHD) oscillations in a prominence fine structure modeled as a straight and cylindrical magnetic tube only partially filled with the prominence material, and with its ends fixed at two rigid…

Solar and Stellar Astrophysics · Physics 2015-05-19 Roberto Soler , Inigo Arregui , Ramon Oliver , Jose Luis Ballester

Recent observations by Hinode/SOT show that MHD waves and mass flows are simultaneously present in the fine structure of solar prominences. We investigate standing kink magnetohydrodynamic (MHD) waves in flowing prominence threads from a…

Solar and Stellar Astrophysics · Physics 2015-05-28 Roberto Soler , Marcel Goossens

Small-scale, cyclic, transverse motions of plasma threads are usually seen in solar prominences, which are often interpreted as magnetohydrodynamic (MHD) waves. Here, we observed small-scale decayless transverse oscillations in a quiescent…

Solar and Stellar Astrophysics · Physics 2022-01-20 Dong Li , Jianchao Xue , Ding Yuan , Zongjun Ning

High-resolution observations show that oscillations and waves in prominence threads are common and that they are attenuated in a few periods. In addition, observers have also reported the presence of material flows in such prominence…

Astrophysics · Physics 2009-11-13 R. Soler , R. Oliver , J. L. Ballester

Transverse oscillations of solar filament and prominence threads have been frequently reported. These oscillations have the common features of being of short period (2-10 min) and being damped after a few periods. Kink magnetohydrodynamic…

Solar and Stellar Astrophysics · Physics 2014-11-20 R. Soler , R. Oliver , J. L. Ballester

The ratio of the period of the fundamental mode to that of the first overtone of kink oscillations, from here on the "period ratio", is a seismology tool that can be used to infer information about the spatial variation of density along…

Solar and Stellar Astrophysics · Physics 2015-03-11 R. Soler , M. Goossens , J. L. Ballester

Previous works indicate that the frequency ratio of second and first harmonics of kink oscillations has tendency towards 3 in the case of prominence threads. We aim to study the magnetohydrodynamic oscillations of longitudinally…

Solar and Stellar Astrophysics · Physics 2014-05-08 S. N. Lomineishvili , T. V. Zaqarashvili , I. Zhelyazkov , A. G. Tevzadze

Time and spatial damping of transverse magnetohydrodynamic (MHD) kink oscillations is a source of information on the cross-field variation of the plasma density in coronal waveguides. We show that a probabilistic approach to the problem of…

Solar and Stellar Astrophysics · Physics 2014-05-14 I. Arregui , A. Asensio Ramos

It has been shown that resonant absorption is a robust physical mechanism to explain the observed damping of magnetohydrodynamic (MHD) kink waves in the solar atmosphere due to naturally occurring plasma inhomogeneity in the direction…

Solar and Stellar Astrophysics · Physics 2015-05-28 Roberto Soler , Jaume Terradas , Gary Verth , Marcel Goossens

Magnetohydrodynamic (MHD) waves are ubiquitously observed in the solar atmosphere. Kink waves are a type of transverse MHD waves in magnetic flux tubes that are damped due to resonant absorption. The theoretical study of kink MHD waves in…

Solar and Stellar Astrophysics · Physics 2015-06-17 Roberto Soler , Marcel Goossens , Jaume Terradas , Ramon Oliver

Observations show the ubiquitous presence of propagating magnetohydrodynamic (MHD) kink waves in the solar atmosphere. Waves and flows are often observed simultaneously. Due to plasma inhomogeneity in the perpendicular direction to the…

Solar and Stellar Astrophysics · Physics 2015-05-27 Roberto Soler , Jaume Terradas , Marcel Goossens

There are observational evidences for the existence of twisted magnetic field in the solar corona. Here, we have investigated resonant damping of the magnetohydrodynamic (MHD) kink waves in magnetic flux tubes. A realistic model of the tube…

Solar and Stellar Astrophysics · Physics 2019-10-09 Zanyar Ebrahimi , Karam Bahari

High-resolution observations provide evidence about the existence of small-amplitude transverse oscillations in solar filament fine structures. These oscillations are believed to represent fast magnetohydrodynamic (MHD) waves and the…

Astrophysics · Physics 2009-11-13 Inigo Arregui , Jaume Terradas , Ramon Oliver , Jose Luis Ballester

Transverse oscillations of small amplitude are commonly seen in high-resolution observations of filament threads, i.e. the fine-structures of solar filaments/prominences, and are typically damped in a few periods. Kink wave modes supported…

Solar and Stellar Astrophysics · Physics 2009-11-13 R. Soler , R. Oliver , J. L. Ballester , M. Goossens

We study the damping of longitudinal oscillations of a prominence thread caused by the mass accretion. In this model we considered a thin curved magnetic tube filled with the plasma. The parts of the tube at the two sides of the thread are…

Solar and Stellar Astrophysics · Physics 2016-07-06 Michael Ruderman , Manuel Luna

We present a Bayesian seismology inversion technique for propagating magnetohydrodynamic (MHD) transverse waves observed in coronal waveguides. The technique uses theoretical predictions for the spatial damping of propagating kink waves in…

Solar and Stellar Astrophysics · Physics 2015-06-15 I. Arregui , A. Asensio Ramos , D. J. Pascoe

Given the difficulty in directly determining prominence physical parameters from observations, prominence seismology stands as an alternative method to probe the nature of these structures. We show recent examples of the application of…

Solar and Stellar Astrophysics · Physics 2012-01-24 I. Arregui , J. L. Ballester , R. Oliver , R. Soler , J. Terradas
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