On the nature of kink MHD waves in magnetic flux tubes (2009)
Goossens, M., Terradas, J., Andries, J., Arregui, I., Ballester, J. L.
Magnetohydrodynamic (MHD) waves are often reported in the solar atmosphere and usually classified as slow, fast, or Alfv\'en. The possibility that these waves have mixed properties is often ignored....
Excitation of standing kink oscillations in coronal loops (2009)
In this work we review the efforts that have been done to study the excitation of the standing fast kink body mode in coronal loops. We mainly focus on the time-dependent problem, which is...
Linear high-resolution schemes for hyperbolic conservation laws: TVB numerical evidence (2008)
Bona, C., Bona-Casas, C., Terradas, J.
The Osher-Chakrabarthy family of linear flux-modification schemes is considered. Improved lower bounds on the compression factors are provided, which suggest the viability of using the unlimited...
Transverse oscillations of systems of coronal loops (2008)
Luna, M., Terradas, J., Oliver, R., Ballester, J. L.
We study the collective kinklike normal modes of a system of several cylindrical loops using the T-matrix theory. Loops that have similar kink frequencies oscillate collectively with a frequency...
Nonlinear Instability of kink oscillations due to shear motions (2008)
Terradas, J., Andries, J., Goossens, M., Arregui, I., Oliver, R., Ballester, J. L.
First results from a high-resolution three-dimensional nonlinear numerical study of the kink oscillation are presented. We show in detail the development of a shear instability in an untwisted...
Transverse oscillations of flowing prominence threads observed with Hinode (2008)
Terradas, J., Arregui, I., Oliver, R., Ballester, J. L.
Recent observations with the Hinode Solar Optical Telescope display an active region prominence whose fine threads oscillate in the vertical direction as they move along a path parallel to the...
Terradas, J., Arregui, I., Oliver, R., Ballester, J. L., Andries, J., Goossens, M.
We study the excitation and damping of transverse oscillations in a multi-stranded model of a straight line-tied coronal loop. The transverse geometry of our equilibrium configuration is quite...
The statistical significance of the N-S asymmetry of solar activity revisited (2007)
Carbonell, M., Terradas, J., Oliver, R., Ballester, J. L.
The main aim of this study is to point out the difficulties found when trying to assess the statistical significance of the North-South asymmetry (hereafter SSNSA) of the most usually considered time...
Resonantly damped surface and body MHD waves in a solar coronal slab with oblique propagation (2007)
Arregui, I., Terradas, J., Oliver, R., Ballester, J. L.
The theory of magnetohydrodynamic (MHD) waves in solar coronal slabs in a zero-$\beta$ configuration and for parallel propagation of waves does not allow the existence of surface waves. When oblique...
Transverse oscillations of two coronal loops (2007)
Luna, M., Terradas, J., Oliver, R., Ballester, J. L.
We study transverse fast magnetohydrodynamic waves in a system of two coronal loops modeled as smoothed, dense plasma cylinders in a uniform magnetic field. The collective oscillatory properties of...
¿Sabía Ramon Margalef de medio ambiente? (2006)
¿Sabía Ramon Margalef de medio ambiente?
Domingo-Roura, X., Macdonald, D.W., Roy, M.S., Marmi, J., Terradas, J., Woodroffe, R., ...
The Eurasian badger ( Meles meles ) is a facultatively social carnivore that shows only rudimentary co-operative behaviour and a poorly defined social hierarchy. Behavioural evidence and limited...
Domingo-Roura, X., Macdonald, D.W., Roy, M.S., Marmi, J., Terradas, J., Woodroffe, R., ...
The Eurasian badger ( Meles meles ) is a facultatively social carnivore that shows only rudimentary co-operative behaviour and a poorly defined social hierarchy. Behavioural evidence and limited...
Domingo-Roura, X., Macdonald, D.W., Roy, M.S., Marmi, J., Terradas, J., Woodroffe, R., ...
The Eurasian badger ( Meles meles ) is a facultatively social carnivore that shows only rudimentary co-operative behaviour and a poorly defined social hierarchy. Behavioural evidence and limited...