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We present exact spherically symmetric null dust solutions in the third orderLovelock gravity with a string cloud background in arbitrary $N$ dimensions,.This represents radiating black holes and generalizes the well known Vaidyasolution to Lovelock gravity with a string cloud in the background. We alsodiscuss the energy conditions and horizon structures, and explicitly bring outthe effect of the string clouds on the horizon structure of black holesolutions for the higher dimensional general relativity andEinstein-Gauss-Bonnet theories. It turns out that the presence of the couplingconstant of the Gauss-Bonnet terms and/or background string clouds completelychanges the structure of the horizon and this may lead to a naked singularity.We recover known spherically symmetric radiating models as well as static blackholes in the appropriate limits.

Cloud of strings for radiating black holes in Lovelock gravity