Magnetic cosmic strings of N=1,D=4 supergravity with cosmological constant

We find a new class of cosmic string solutions with non-vanishing magnetic flux of N=1, D=4 supergravity with a cosmological constant and coupled to any number of Maxwell and scalar multiplets. We show that these magnetic cosmic string solutions preserve 1/2 of supersymmetry. We give an explicit example of such a solution for which the complex scalars are constant and the spacetime is smooth with topology R1,1×S2. Two more examples are explored for which a complex scalar field takes values in CP1 and in SL(2,R)/U(1).