Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Terradas, Jaume"'
Autor:
Luna, Manuel, Joshi, Reetika, Schmieder, Brigitte, Moreno-Insertis, Fernando, Liakh, Valeriia, Terradas, Jaume
Large amplitude oscillations commonly occur in solar prominences, triggered by energetic phenomena such as jets and flares. On March 14-15, 2015, a filament partially erupted in two stages, leading to oscillations in different parts. This study explo
Externí odkaz:
http://arxiv.org/abs/2410.10223
Publikováno v:
A&A 676, A25 (2023)
The fine structure of solar prominences is made by thin threads that outline the magnetic field lines. Observations show that transverse waves of Alfv\'enic nature are ubiquitous in prominence threads. These waves are driven at the photosphere and pr
Externí odkaz:
http://arxiv.org/abs/2306.13434
Autor:
Terradas, Jaume, Neukirch, Thomas
Publikováno v:
A&A 671, A31 (2023)
Active regions (ARs) are typical magnetic structures found in the solar atmosphere. We calculate several magnetohydrostatic (MHS) equilibrium models that include the effect of a finite plasma-$\beta$ and gravity and that are representative of these s
Externí odkaz:
http://arxiv.org/abs/2212.04735
Publikováno v:
A&A 660, A24 (2022)
We investigate, using a multi-fluid approach, the main properties of standing ion-acoustic modes driven by nonlinear standing Alfv\'en waves. The standing character of the Alfv\'enic pump is because we study the superposition of two identical circula
Externí odkaz:
http://arxiv.org/abs/2112.13048
Publikováno v:
A&A 658, A106 (2022)
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 fundamental
Externí odkaz:
http://arxiv.org/abs/2111.09036
In the solar atmosphere, Alfv\'en waves are believed to play an important role in the transfer of energy from the photosphere to the corona and solar wind, and in the heating of the chromosphere. We perform numerical computations to investigate energ
Externí odkaz:
http://arxiv.org/abs/1812.01323
Autor:
Luna, Manuel, Karpen, Judith, Ballester, José Luís, Muglach, Karin, Terradas, Jaume, Kucera, Therese, Gilbert, Holly
We have catalogued 196 filament oscillations from the GONG $H{\alpha}$ network data during several months near the maximum of solar cycle 24 (January - June 2014). Selected examples from the catalog are described in detail, along with our statistical
Externí odkaz:
http://arxiv.org/abs/1804.03743
The multi-fluid modelling of high-frequency waves in partially ionized plasmas has shown that the behavior of magnetohydrodynamics waves in the linear regime is heavily influenced by the collisional interaction between the different species that form
Externí odkaz:
http://arxiv.org/abs/1802.08134
Publikováno v:
In Trends in Ecology & Evolution November 2022 37(11):935-938
Publikováno v:
ApJ, 837:80, 2017
The presence of neutral species in a plasma has been shown to greatly affect the properties of magnetohydrodynamic waves. For instance, the interaction between ions and neutrals through momentum transfer collisions causes the damping of Alfv\'en wave
Externí odkaz:
http://arxiv.org/abs/1703.05093