Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsh41b1666d&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #SH41B-1666
Astronomy and Astrophysics
Astrophysics
[7509] Solar Physics, Astrophysics, And Astronomy / Corona, [7546] Solar Physics, Astrophysics, And Astronomy / Transition Region, [7549] Solar Physics, Astrophysics, And Astronomy / Ultraviolet Emissions, [7959] Space Weather / Models
Scientific paper
Here we present ongoing work focused on improving the physical description of the low corona and transition region within a global 3D MHD model of the solar corona based on the Space Weather Modeling Framework. This work includes the integration of the non-ideal effects of coronal heating, electron heat conduction, and radiative cooling into MHD equations and solar wind model. Via observation synthesis and the subsequent comparison to full sun EUV observations, we demonstrate the need for these additional considerations when using MHD models to describe the unique conditions in the low corona. Additionally we present the results of two different boundary conditions using this model; one set in the upper transition region (the Radiative Energy Balance model), as well as a uniform chromospheric boundary condition where the transition region can be modeled in its entirety. We also explore bias and limitations inherent in line-of-sight (LOS) image synthesis and explore this in terms of comparison to EUV data.
Downs Cooper
Lugaz Noé
Roussev Ilia I.
Sokolov Iu. I.
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