Artículos de revistas
A turbulence-driven model for heating and acceleration of the fast wind in coronal holes
Fecha
2010-01Registro en:
Verdini, A.; Velli, M.; Matthaeus, W. H.; Oughton, S.; Dmitruk, Pablo Ariel; A turbulence-driven model for heating and acceleration of the fast wind in coronal holes; Institute of Physics Publishing; Astrophysical Journal Letters; 708; 2 PART 2; 1-2010; 116-120
2041-8213
CONICET Digital
CONICET
Autor
Verdini, A.
Velli, M.
Matthaeus, W. H.
Oughton, S.
Dmitruk, Pablo Ariel
Resumen
A model is presented for generation of fast solar wind in coronal holes, relying on heating that is dominated by turbulent dissipation of MHD fluctuations transported upward in the solar atmosphere. Scale-separated transport equations include large-scale fields, transverse Alfvénic fluctuations, and a small compressive dissipation due to parallel shears near the transition region. The model accounts for proton temperature, density, wind speed, and fluctuation amplitude as observed in remote sensing and in situ satellite data. © 2010. The American Astronomical Society. All rights reserved..