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Astron. Astrophys. 329, 725-734 (1998)

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5. Conclusion

Our time-delay alignment analyses confirm the striking lack of spatial correspondence between photospheric and chromospheric wave patterning that led us to subsurface wave excitation and wave diffraction in Paper I. In addition, we have found various unexpected alignments at large time delay that seem to be controlled by mesoscale patterning, with the time delay set by pattern migration.

The plots above again demonstrate the complexity in which the photospheric and chromospheric brightness structuring and wave amplitude patterns combine at high spatial and temporal resolution. We regard our various results as indicative for further studies along the same lines, to be pursued with larger and better data sets. It seems particularly worthwhile to employ such alignment analyses to much larger surface samples using photospheric flow tracking to enable studies of chromospheric response to photospheric or subsurface excitation sites while following migrations of the latter over mesoscale and larger distances.

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© European Southern Observatory (ESO) 1998

Online publication: December 8, 1997