Backgrounds depending on time and on "angular" variable, namely polarized and
unpolarized S1×S2 Gowdy models, are generated as the sector inside
the horizons of the manifold corresponding to axisymmetric solutions. As is
known, an analytical continuation of ordinary D-branes, iD-branes allows
one to find S-brane solutions. Simple models have been constructed by means
of analytic continuation of the Schwarzchild and the Kerr metrics. The
possibility of studying the i-Gowdy models obtained here is outlined with an
eye toward seeing if they could represent some kind of generalized S-branes
depending not only on time but also on an ``angular'' variable.Comment: 24 pages, 5 figures, corrected typos, references adde