English
Related papers

Related papers: Benchmarking Fast-to-Alfven Mode Conversion in a C…

200 papers

Phase-mixing of Alfv\'en waves in the solar corona has been identified as one possible candidate to explain coronal heating. While this scenario is supported by observations of ubiquitous oscillations in the corona carrying sufficient wave…

Solar and Stellar Astrophysics · Physics 2017-05-17 Paolo Pagano , Ineke De Moortel

Alfv\'{e}n waves are believed to play an important role in the heating and acceleration of the fast solar wind emanating from coronal holes. Nonlinear interactions between the dominant ${\bf z}_{+}$ waves and minority ${\bf z}_{-}$ waves…

Solar and Stellar Astrophysics · Physics 2017-01-25 Adriaan A. van Ballegooijen , Mahboubeh Asgari-Targhi

The solar wind emanates from the hot and tenuous solar corona. Earlier studies using 1.5 dimensional simulations show that Alfv\'{e}n waves generated in the photosphere play an important role in coronal heating through the process of…

Solar and Stellar Astrophysics · Physics 2015-05-30 Takuma Matsumoto , Takeru Ken Suzuki

We present a model for compressible sub-Alfvenic isothermal magnetohydrodynamic (MHD) turbulence in low-beta plasmas and numerically test it. We separate MHD fluctuations into 3 distinct families - Alfven, slow, and fast modes. We find…

Astrophysics · Physics 2016-08-30 Jungyeon Cho , A. Lazarian

Using the Hinode/EIS 2$"$ spectroscopic observations, we study the intensity, velocity, and FWHM variations of the strongest Fe XII 195.12 \AA\ line along the jet to find the signature of Alfv\'en waves. We simulate numerically the…

Solar and Stellar Astrophysics · Physics 2015-09-23 P. Jelínek , A. K. Srivastava , K. Murawski , P. Kayshap , B. N. Dwivedi

The recently suggested swing interaction between fast magnetosonic and Alfv\'en waves (2002) is generalized to inhomogeneous media. We show that the fast magnetosonic waves propagating across an applied non-uniform magnetic field can…

Astrophysics · Physics 2007-05-23 B. M. Shergelashvili , T. V. Zaqarashvili , S. Poedts , B. Roberts

The solar corona is a hot, dynamic, and highly magnetized plasma environment whose source of energy is not yet well understood. One leading contender for that energy source is the dissipation of magnetohydrodynamic (MHD) waves or turbulent…

Solar and Stellar Astrophysics · Physics 2018-08-01 Steven R. Cranmer

Large-amplitude Alfv\'en waves are observed in various systems in space and laboratories, demonstrating an interesting property that the wave shapes are stable even in the nonlinear regime. The ideal magnetohydrodynamics (MHD) model…

Plasma Physics · Physics 2016-03-23 Hamdi M. Abdelhamid , Zensho Yoshida

Alfv\'en waves are primal and pervasive in space plasmas and significantly contributes to microscale fluctuations in the solar wind and some heliospheric processes. Here, we demonstrate the first observable distinct feature of Alfv\'en wave…

Space Physics · Physics 2018-10-16 Anil N. Raghav , Ankita Kule

Non-resonant interactions between Alfv\'en waves and a relativistic plasma result in the formation of the population inversions necessary for synchrotron maser emission (SME) across a wide range of magnetisations and temperatures. We…

High Energy Astrophysical Phenomena · Physics 2025-11-26 Killian Long , Asaf Pe'er

The nature of MHD waves within inhomogeneous media is fundamental to understanding and interpreting wave behavior in the solar atmosphere. We investigate fast magnetoacoustic wave behavior within gravitationally stratified, magnetically…

Solar and Stellar Astrophysics · Physics 2026-02-06 Ryan T. Smith , James A. McLaughlin , Gert J. J. Botha

Turbulence, a ubiquitous phenomenon in interplanetary space, is crucial for the energy conversion of space plasma at multiple scales. This work focuses on the propagation, polarization and wave composition properties of the solar wind…

Space Physics · Physics 2020-09-09 Xingyu Zhu , Jiansen He , Daniel Verscharen , Die Duan , Stuart D. Bale

The weakly nonlinear interaction of sound and linearly polarised Alfv{\'e}n waves propagating in the same direction along an applied magnetic field is studied. It is found that a sound wave is coupled to the Alfv{\'e}n wave with double…

Astrophysics · Physics 2009-11-11 T. V. Zaqarashvili , B. Roberts

Past observations show that solar wind (SW) acceleration occurs inside the sub-Alfvenic region, reaching the local Alfven speed at typical distances ~ 10 - 20 Rs (solar radii). Recently, Parker Solar Probe (PSP) traversed regions of…

M dwarf's atmosphere is expected to be highly magnetized. The magnetic energy can be responsible for heating the stellar chromosphere and corona, and driving the stellar wind. The nonlinear propagation of Alfv\'en wave is the promising…

Solar and Stellar Astrophysics · Physics 2021-09-29 Takahito Sakaue , Kazunari Shibata

We carry out two-dimensional magnetohydrodynamic (MHD) simulations of an ensemble of Alfv\'enic fluctuations propagating in a structured, expanding solar wind including the presence of fast and slow solar wind streams. Using an appropriate…

Solar and Stellar Astrophysics · Physics 2020-01-15 Chen Shi , Marco Velli , Anna Tenerani , Franco Rappazzo , Victor Réville

We show the evidence of ion-cyclotron dissipation mechanism in solar wind plasma using Helios data. From our statistical analysis we found that the wave power of high-frequency transverse waves (having frequencies between 0.01 and 1…

Solar and Stellar Astrophysics · Physics 2010-09-27 Sofiane Bourouaine , Eckart Marsch , Fritz M. Neubauer

Our study investigates the properties of Alfv\'en waves in partially ionised solar plasmas in the presence of steady, field-aligned, flows of charged and neutral particles. Our work aims to understand how such flows modify wave propagation…

Solar and Stellar Astrophysics · Physics 2025-11-17 Nada F. Alshehri , Istvan Ballai , Viktor Fedun , Gary Verth

We study the propagation and transmission of Alfven waves in the context of cylindrical geometry. This approximates the polar cap region of aligned pulsar with strong magnetic fields. Non-propagating region appears in the presence of…

Astrophysics · Physics 2009-11-10 Yasufumi Kojima , Taishi Okita

A nonlocal coupling mechanism to directly transfer the energy from large-scale Magnetohydrodynamic(MHD) Alfven waves to small-scale kinetic Alfven waves is presented. It is shown that the interaction between a MHD Alfven wave and a…

Solar and Stellar Astrophysics · Physics 2011-04-21 Zhao Jinsong , Wu Dejin , Lu Jianyong