7-branes and higher Kaluza–Klein branes Original Research Article

We present and study a new chain of 10-dimensional T duality related solutions and their 11-dimensional parents whose existence had been predicted in the literature based in U duality requirements in 4 dimensions. The first link in this chain is the S dual of the D7-brane. The next link has 6 spatial worldvolume dimensions, it is charged w.r.t. the RR 7-form but depends only on 2 transverse dimensions since the third has to be compactified in a circle and is isometric and hence is similar in this respect to the KK monopole. The next link has 5 spatial worldvolume dimensions, it is charged w.r.t. the RR 6-form but, again, depends only on 2 transverse dimensions since the third and fourth have to be compactified in circles and are isometric and so on for the following links.