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相关论文: Magnetohydrodynamic Waves in Partially Ionized Pro…

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Context. Magnetohydrodynamic (MHD) waves are ubiquitous in the solar atmosphere. In magnetic waveguides resonant absorption due to plasma inhomogeneity naturally transfers wave energy from large-scale motions to small-scale motions. In the…

太阳与恒星天体物理 · 物理学 2015-06-03 R. Soler , J. Andries , M. Goossens

Observations have shown that magnetohydrodynamic waves over a large frequency range are ubiquitous in solar prominences. The waves are probably driven by photospheric motions and may transport energy up to prominences suspended in the…

太阳与恒星天体物理 · 物理学 2016-07-13 Roberto Soler , Jaume Terradas , Ramon Oliver , Jose Luis Ballester

A nonlinear time dependent fluid simulation model is developed that describes the evolution of magnetohydrodynamic waves in the presence of collisional and charge exchange interactions of a partially ionized plasma. The partially ionized…

空间物理 · 物理学 2015-05-19 Dastgeer Shaikh , G. P. Zank

Solar transients and eruptive phenomena which are ubiquitous in the solar atmosphere, can shed new light to the understanding of the outstanding problems like coronal heating and the solar wind acceleration. Observations in the entire…

太阳与恒星天体物理 · 物理学 2011-10-05 Abhishek K. Srivastava , V. M. Nakariakov , B. N. Dwivedi , Pankaj Kumar

Prominences, or filaments, are a striking phenomenon in the solar atmosphere. Besides their own rich features and dynamics, they are related to many other activities, such as solar flares and coronal mass ejections (CMEs). In the past…

太阳与恒星天体物理 · 物理学 2014-07-08 P. F. Chen

Solar prominences are clouds of cool plasma levitating above the solar surface and insulated from the million-degree corona by magnetic fields. They form in regions of complex magnetic topology, characterized by non-potential fields, which…

太阳与恒星天体物理 · 物理学 2015-06-23 M. J. Martinez Gonzalez , R. Manso Sainz , A. Asensio Ramos , C. Beck , J. de la Cruz Rodriguez , A. J. Diaz

Cool and dense prominences found in the solar atmosphere are known to be partially ionized because of their relative low temperature. In this Letter, we address the long-standing problem of how the neutral component of the plasma in…

太阳与恒星天体物理 · 物理学 2015-06-24 J. Terradas , R. Soler , R. Oliver , J. L. Ballester

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…

太阳与恒星天体物理 · 物理学 2018-04-04 David Martínez-Gómez , Roberto Soler , Jaume Terradas

Quiescent prominences are thin slabs of cold, dense plasma embedded in the much hotter and rarer solar corona. Although their global shape is rather irregular, they are often characterised by an internal structure consisting of a large…

太阳与恒星天体物理 · 物理学 2010-02-23 R. Oliver

Aims. Taking account of steady flow in solar prominences, we study its effects on spatial damping of small-amplitude non-adiabatic magnetoacoustic waves in a homogeneous, isothermal, and unbounded prominence plasma. Methods. We model the…

天体物理学 · 物理学 2007-11-16 K. A. P. Singh , R. Erdelyi , B. N. Dwivedi

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…

太阳与恒星天体物理 · 物理学 2015-05-19 Roberto Soler , Inigo Arregui , Ramon Oliver , Jose Luis Ballester

We investigate the nature of dissipative instability appearing in a prominence planar thread filled with partially ionised plasma in the incompressible limit. The importance of partial ionisation is investigated in terms of the ionisation…

太阳与恒星天体物理 · 物理学 2017-07-26 I. Ballai , B. Pinter , R. Oliver , M. Alexandrou

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…

天体物理学 · 物理学 2009-11-13 Inigo Arregui , Jaume Terradas , Ramon Oliver , Jose Luis Ballester

This chapter reviews the recent progress made mainly during the last two decades on wave turbulence in magnetized plasmas (MHD, Hall MHD and electron MHD) in the incompressible and compressible cases. The emphasis is made on homogeneous and…

太阳与恒星天体物理 · 物理学 2015-03-19 Sebastien Galtier

The properties of surface waves in a partially ionized, compressible magnetized plasma slab are investigated in this work. The waves are affected by the nonideal magnetohydrodynamic effects which causes finite drift of the magnetic field in…

太阳与恒星天体物理 · 物理学 2015-06-23 B. P. Pandey , C. B. Dwivedi

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…

太阳与恒星天体物理 · 物理学 2015-05-28 Roberto Soler , Marcel Goossens

Ionization occurs in the upper atmospheres of hot Jupiters and in the interiors of Gas Giant Planets, leading to magnetohydrodynamic (MHD) effects which couple the momentum and the magnetic field, thereby significantly altering the…

流体动力学 · 物理学 2020-08-12 Santiago J. Benavides , Glenn R. Flierl

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…

太阳与恒星天体物理 · 物理学 2017-03-16 David Martínez-Gómez , Roberto Soler , Jaume Terradas

The solar atmosphere is known to contain many different types of wavelike oscillation. Waves and other fluctuations (e.g., turbulent eddies) are believed to be responsible for at least some of the energy transport and dissipation that heats…

太阳与恒星天体物理 · 物理学 2023-08-09 Steven R. Cranmer , Momchil E. Molnar

Here we review the recent progress made in the detection, examination, characterisation and interpretation of oscillations manifesting in small-scale magnetic elements in the solar photosphere. This region of the Sun's atmosphere is…

太阳与恒星天体物理 · 物理学 2016-03-09 David B. Jess , Gary Verth