Results 121 to 130 of about 16,413 (221)

Nonlinearly Wave-Wave Interaction Leads to Solar Coronal Heating

Journal of Condensed Matter
Nonlinear formulation of slow Alfvén wave in magnetized plasma which can be an essential ingredient of the solar space plasma is being studied. Various method has been adopted, mathematical formulation of the magnetohydrodynamic (MHD) waves can interpret the astrophysical phenomena happening in space plasma.
openaire   +1 more source

Constraining Low-Frequency Alfvenic Turbulence in the Solar Wind Using Density Fluctuation Measurements

, 2009
One proposed mechanism for heating the solar wind, from close to the sun to beyond 10 AU, invokes low-frequency, oblique, Alfven-wave turbulence. Because small-scale oblique Alfven waves (kinetic Alfven waves) are compressive, the measured density ...
Axford, Benjamin D. G. Chandran, Beresnyak, Beresnyak, Celnikier, Celnikier, Chandran, Chandran, Chandran, Cranmer, Cranmer, Cranmer, Cranmer, Czechowski, Dmitruk, Dmitruk, Dobrowolny, Eliot Quataert, Fisher, Fisk, Galeev, Grappin, Gregory G. Howes, Heyvaerts, Hollweg, Iroshnikov, Kellogg, Kohl, Lithwick, Lithwick, Lithwick, Markovskii, Maron, Marsch, Marsch, Matthaeus, Peera Pongkitiwanichakul, Podesta, Qian Xia, Quataert, Quataert, Ruzmaikin, Schekochihin, Stix, Velli, Verdini, Verdini   +46 more
core   +1 more source

Dynamics of Slow Solar Wind Emerging from an Equatorial Coronal Hole

The Astrophysical Journal
We present a three-dimensional reduced magnetohydrodynamics model to depict turbulence induced by Alfvén waves within the slow solar wind originating from an open magnetic field positioned in a coronal hole near the solar equator.
M. Asgari-Targhi, K. Fujiki
doaj   +1 more source

Ray tracing of ion-cyclotron waves in a coronal funnel

, 2007
Remote observations of coronal holes have strongly implicated the kinetic interactions of ion-cyclotron waves with ions as a principal mechanism for plasma heating and acceleration of the fast solar wind.
Marsch, E., Mecheri, R.
core  

Observation of Large-scale Kelvin–Helmholtz Instability Wave Driven by a Coronal Mass Ejection

The Astrophysical Journal Letters
The Kelvin–Helmholtz instability (KHI) can occur when there is a relative motion between two adjacent fluids. In the case of magnetized plasma, the shear velocity must exceed the local Alfvén speed for the instability to develop.
Leon Ofman, Olga Khabarova, Ryun-Yong Kwon, Yogesh, Eyal Heifetz, Katariina Nykyri   +5 more
doaj   +1 more source

Generation of Surface Sausage Oscillations of a Current Sheet and Propagating Magnetoacoustic Waves by Impulsive Reconnection

The Astrophysical Journal
Magnetic reconnection and magnetohydrodynamic waves may well be both playing a role in coronal heating. In this paper, we simulate reconnection in the corona as a response to the convergence of opposite-polarity magnetic sources at the base of the corona.
Sripan Mondal, A. K. Srivastava, David I. Pontin, Eric R. Priest   +3 more
doaj   +1 more source

On the Origins of Coronal Alfvénic Waves

The Astrophysical Journal Letters
Alfvénic waves are considered a key contributor to the energy flux that powers the Sun’s corona, with theoretical models demonstrating their potential to explain coronal EUV and X-ray emission and the acceleration of the solar wind.
Richard J. Morton, Roberto Soler
doaj   +1 more source

Collisional damping of surface waves in the solar corona [PDF]

The damping of surface waves by viscosity and heat conduction is evaluated. For the solar corona, it is found that surface waves dissipate efficiently only if their periods are shorter than a few tens of seconds and only if the background magnetic field ...
Gordon, B. E., Hollweg, J. V.
core   +1 more source

Evidence linking coronal mass ejections with interplanetary magnetic clouds [PDF]

Using proxy data for the occurrence of those mass ejections from the solar corona which are directed earthward, we investigate the association between the post-1970 interplanetary magnetic clouds of Klein and Burlaga and coronal mass ejections.
Hildner, E., Wilson, R. M.
core   +1 more source

Diagnostics of the solar coronal plasmas by magnetohydrodynamic waves: magnetohydrodynamic seismology

Reviews of Modern Plasma Physics
AbstractMacroscopic wave and oscillatory phenomena ubiquitously detected in the plasma of the corona of the Sun are interpreted in terms of magnetohydrodynamic theory. Fast and slow magnetoacoustic waves are clearly distinguished in observations. Properties of coronal magnetohydrodynamic waves are determined by local parameters of the plasma, including
Valery M. Nakariakov, Sihui Zhong, Dmitrii Y. Kolotkov, Rebecca L. Meadowcroft, Yu Zhong, Ding Yuan   +5 more
openaire   +2 more sources