A search for interaction between magnetic fields and supergranular flows in the network based on MDI observations

Session 2 - Everything Else.
Display session, Friday, June 27
Ballroom C, Chair: Richard Canfield

[2.43] A search for interaction between magnetic fields and supergranular flows in the network based on MDI observations

C. J. Schrijver, R. A. Shine, A. M. Title (SLISR), H. J. Hagenaar (R.U. Utrecht), N. E. Hurlburt, T. D. Tarbell (SLISR), G. W. Simon (AF/PL/GPSS)

We study the supergranular flow field and its temporal evolution in the quiet Sun as observed with the Michelson Doppler Imager on board SOHO. We use the intensity images to derive the flow fields using local correlation tracking. The data sets span one to two days with a one--minute cadence. We separate areas with a relatively high filling factor for magnetic concentrations from areas with a low magnetic filling factor in order to study to what extent the flows influence the magnetic network in the quiet Sun and vice versa.

This work is supported by NASA Grant NAG5-3077 at Stanford and Lockheed Martin, and by AFOSR and the Fellows Program of AF Phillips Lab at NSO/SP

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