Main Objective: I'd like to acquire a time series of a small- to medium- sized pore with SP data to see if there are any oscillations of the magnetic field strength, inclination, intensity or area that could be indicative of MHD waves in the photosphere.
Scientific Justification: MHD waves are thought to be a likely candidate for transporting heat in the solar atmosphere. The layer in which we can most successfully observe, ie, the photosphere, is also the layer in which the MHD wave amplitudes are small and mode-mixing and conversion of different types of waves makes observations messy. Nevertheless, it is important to utilize what is our best spectropolarimeter (SOT SP) available to the solar physics community to determine if the amplitudes of the MHD waves in the photosphere really are too small to be detected, as predicted by theory. We have acquired two nice data sets for time series (15 step fast map rasters) in sunspots in the last year and half using HOP 272. It would be excellent to run this type of observation with pores as targets since the weaker field strengths and smaller wave guides of pores will provide a distinctly different environment for wave propagation. |
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