Results 121 to 130 of about 2,286 (221)

Solar Coronal Loops Resolved by Hinode and SDO

, 2012
Revised version accepted by ApJ ...
Brooks, David H., Warren, Harry P., Ugarte-Urra, Ignacio   +2 more
openaire   +2 more sources

Self-Consistent Heating of the Magnetically Closed Solar Corona: Generation of Nanoflares, Thermodynamic Response of the Plasma and Observational Signatures

The Astrophysical Journal
The energy that heats the magnetically closed solar corona originates in the complex motions of the massive photosphere. Turbulent photospheric convection slowly displaces the footpoints of coronal field lines, causing them to become twisted and tangled.
Craig D. Johnston, Lars K. S. Daldorff, James A. Klimchuk, Shanwlee Sow Mondal, Will T. Barnes, James E. Leake, Jack Reid, Jacob D. Parker   +7 more
doaj   +1 more source

Coupling of the solar wind, magnetosphere and ionosphere by MHD waves

, 2012
The solar wind, magnetosphere and ionosphere are coupled by magnetohydrodynamic waves, and this gives rise to new and often unexpected behaviours that cannot be produced by a single, isolated part of the system.
Russell, Alexander J. B.
core  

Three Types of Solar Coronal Rain during Magnetic Reconnection between Open and Closed Magnetic Structures

The Astrophysical Journal
Coronal rain (CR) is a crucial part of the mass cycle between the corona and chromosphere. It includes flare-driven CR and two types of quiescent CR, along nonflaring active region closed loops and along open structures, separately, labeled as type I ...
Fangfang Qiao, Leping Li, Hui Tian, Zhenyong Hou, Hongqiang Song, Kaifan Ji, Zheng Sun   +6 more
doaj   +1 more source

Turbulent Suppression of Alfvénic Wave Resonances in Coronal Loops

The Astrophysical Journal
Alfvénic wave turbulence is a leading mechanism for explaining the heating of the solar corona and the acceleration of the solar wind. Alfvénic waves are observed to be prevalent throughout the inner corona.
Edris Tajfirouze, Richard Morton, Mahboubeh Asgari-Targhi   +2 more
doaj   +1 more source

The Hydrodynamic Thermal Continuum, with Applications to Stratified Atmospheres and 1D Coronal Loop Models

The Astrophysical Journal
Using both analytical and numerical means, we demonstrate that linear stability analysis of a hydrodynamic stratified atmosphere or a 1D coronal loop model in nonadiabatic settings features a thermal continuum corresponding to highly localized ...
Rony Keppens, Jordi De Jonghe, Adrian Kelly, Nicolas Brughmans, Hans Goedbloed   +4 more
doaj   +1 more source

MUSE EUV spectroscopy of a kink-unstable coronal loops system

Turbulent photospheric motions drive the solar magnetic field to twist and tangle, making magnetic stresses continuously grow in the corona. Thin magnetic flux tubes can become kink-unstable and magnetic energy can be released through impulsive and ...
Antonino Petralia, Alan W. Hood, Gabriele Cozzo, Costanza Argiroffi, Fabio Reale, Juan Martinez-Sykora, Bart de Pontieu, Paolo Pagano, Jack Reid, Paola Testa   +9 more
core  

Equilibrium and eruption of solar coronal magnetic structures

, 2014
In this thesis magnetostatic and thermal equilibria of several coronal magnetic structures are considered. A model is set up for the eruption of a prominence (modelled as a twisted flux tube) magnetically coupled to a coronal mass ejection (an ...
Steele, C. D. C.
core  

Models of stationary siphon flows in stratified, thermally

, 2008
We present a detailed hydrodynamic model of stationary siphon flows in a semicircular solar coronal loop of constant cross section, which takes into account simultaneously gravity, thermal conduction, radiative losses and a phenomenological heating ...
Conducting Coronal Loops
core  

Wave propagation, phase mixing and dissipation in Hall MHD

, 2012
In this thesis the effect of the Hall term in the generalised Ohm’s law on Alfvén (shear) and fast wave propagation and dissipation in the ion cyclotron frequency range is investigated.
Threlfall, James W.
core