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We conduct three-dimensional hydrodynamical simulations of two opposite jetslaunched obliquely to the orbital plane around an asymptotic giant branch (AGB)star and within its dense wind, and demonstrate the formation of a `messy'planetary nebula (PN), namely, a PN lacking any type of symmetry (highlyirregular). In building the initial conditions we assume that a tight binarysystem orbits the AGB star, and that the orbital plane of the tight binarysystem is inclined to the orbital plane of the binary system and the AGB star(the triple system plane). We further assume that the accreted mass on to thetight binary system forms an accretion disk around one of the stars, and thatthe plane of the disk is tilted to the orbital plane of the triple system. Thehighly asymmetrical and filamentary structure that we obtain support the notionthat messy PNe might be shaped by triple stellar systems.

Shaping planetary nebulae with jets in inclined triple stellar systems