Other
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spd....40.1409a&link_type=abstract
American Astronomical Society, SPD meeting #40, #14.09; Bulletin of the American Astronomical Society, Vol. 41, p.834
Other
Scientific paper
We present the results of semi-empirical time-dependent fully non-linear magnetohydrodynamic (MHD) simulations of an equatorially confined streamer belt using observational constrains in a two-fluid 2.5D MHD modeling. Specifically, we reproduced the COR1 STEREO observations of an equatorially confined streamer obtained in July 3-17, 2007. For this streamer event we used the PFSS model of the initial coronal magnetic field configuration with the boundary conditions at the photosphere specified by the NSO/GONG magnetogram data. Calculations were performed for nearly isothermal polytropic flow and for the fully thermally conductive case with the two-component (electrons and protons) heat flux, qeff, and the effective temperature, Teff , derived from a semi-empirical state-state model (SG model). We show that our realistic MHD simulations are capable of reproducing basic thermodynamic and kinematic properties of the observed coronal streamer structure at distances between 1.5 to 4 solar radii.
Airapetian Vladimir
Kramar Maxim
Ofman Leon
Sitter Jr. E.
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