Speaker
Viktor Fedun
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/I2.J303.pdf
Multi-scale photospheric plasma motions and energy transfer to the solar
corona
V. Fedun
The University of Sheffield, Sheffield, UK
Recent ground- and space-based observations reveal the presence of multi-scale motions, such
as vortex motions, swirling in the complex intergranular lanes. In these regions, magnetic flux
tubes are generated via the interaction of granulation motion and the background magnetic
field. Vortex motions are particularly important in understanding the dynamics of the solar at-
mosphere since they stress the magnetic field, increase the available magnetic energy, drive the
upper atmosphere and contribute towards heating of the solar corona. They are also important
from a hydrodynamic perspective, redistributing momentum and mass in turbulent flows. In this
talk, I will present a statistical analysis of the properties of photospheric vortices and the results
of numerical simulations in order to answer the following research question: Can photospheric
flow patterns reorganise the magnetic field emanating from inter-granular lanes sufficiently to
create efficient conduits for transporting mass and energy from the lower solar atmosphere into
the upper atmosphere, solar corona and solar wind?
