Observational evidence for a shock event in the solar granulation

High resolution spectra of Fe II 6456.39 A line are used to investigate a shock in the solar granulation. The changes of the main spectral characteristics measured in the shock area are in a good agreement with the characteristics predicted with theory. The analysis of the shock, made in the past by several authors was extended in this work to the analysis of a temporal development of the shock event. The 2 minutes duration of a stable and declining phases of the event was studied. We conclude that the observed shock belonged to the particular type of shock generated as a consequence of the swaying motion of the magnetic flux tube concentrated in the intergranular lane. Such type of shock was proposed by numerical simulations made by Steiner et al. (1998).