%0 Journal Article %T Steady states with unbounded mass of the Keller-Segel system %A Angela Pistoia %A Giusi Vaira %J Mathematics %D 2012 %I arXiv %X We consider the stationary Keller-Segel system from chemotaxis in a ball and we show the existence of a solution concentrating at the boundary of the ball. %U http://arxiv.org/abs/1211.1900v1