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Vector Magnetic Fields and Current Helicities in Coronal Holes and Quiet Regions
Sun activity — Sun magnetic fields — Sun photosphere
2010/11/10
In the solar photosphere, many properties of coronal holes (CHs) are notknown, especially vector magnetic fields. Using observations from Hinode, we investigate vector magnetic fields, current densiti...
Evolving Coronal Holes and Interplanetary Erupting Stream Disturbances
Sun coronal holes—interplanetary disturbances—interplanetary scintillation
2010/9/16
Coronal holes and interplanetary disturbances are important aspects of the physics of the Sun and heliosphere. Interplanetary disturbances are identified as an increase in the density turbulence compa...
Radial evolution of intermittent heat flux in solar coronal holes
Radial evolution intermittent heat flux solar coronal holes
2009/11/11
Recently, we suggested that the source of ion heating in solar coronal holes is small-scale reconnection events (microflares) at the coronal base. The microflares launch intermittent heat flux up into...
Oblique Propagation and Dissipation of Alfvén Waves in Coronal Holes
Sun Alfv´ en waves coronal holes solar wind
2009/5/12
We investigate the effect of viscosity and magnetic diffusivity
on the oblique propagation and dissipation of Alfv´en waves with respect
to the normal outward direction, making use of MHD equa...
Evolving Coronal Holes and Interplanetary Erupting Stream Disturbances
Sun:coronal holes interplanetary disturbances interplanetary scintillation
2009/5/7
Coronal holes and interplanetary disturbances are important aspects of the physics of the Sun and heliosphere. Interplanetary disturbances are identified as an increase in the density turbulence comp...
Oblique Propagation and Dissipation of Alfvén Waves in Coronal Holes
Sun Alfv´ en waves coronal holes solar wind
2010/9/16
We investigate the effect of viscosity and magnetic diffusivity on the oblique propagation and dissipation of Alfv´en waves with respect to the normal outward direction, making use of MHD equati...