ABSTRACT
A model is proposed for producing oscillations in the solar photosphere; it is suggested that the upper portion of the convection zone acts as a resonant cavity and drives the photosphere as a whole, at frequencies for which waves are non-propagating. The existence of such a cavity depends on a reflecting upper boundary that results from decreasing temperature and on the postulated existence of a reflecting lower boundary which, for waves of 300-sec period, lies 1000-2000 km below the top of the convection zone.
