AAS 204th Meeting, June 2004
Session 39 Solar Magnetic Fields and Activity
SPD Poster, Tuesday, June 1, 2004, 10:00am-7:00pm, Ballroom

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[39.08] Numerical Models of solar Magnetoconvection: Toward a Coupling to the Corona

M.L. DeRosa, N.E. Hurlburt (Lockheed Martin ATC)

We present numerical simulations of a stratified magnetized fluid, confined to a spherical shell, that approximates the transition from a high- to low-beta regime, similar to the conditions present at the solar photosphere. In these simulations, a model corona atmosphere is situated above a convectively unstable, high-beta fluid layer. As a result, the dynamics associated with evolving magnetic features in the solar atmosphere can be modeled in a manner that is self-consistent with the convective motions that provide the driving. Our simulations exhibit arcade-like structures that undergo reconnection as a result of the supergranular-scale fluid motions in the convective layer below, and discuss possible observational consequences.

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