1 Asymmetric Planetary Nebulae 5 (Ebrary, Cambridge, USA), A.A Zijlstra, I. McDonald, eds. Sculpting a Bipolar Preplanetary Nebula with Highly-Collimated Fast Jets Raghvendra Sahai Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA M. Claussen, M. Morris, C. Sanchez Contreras Pre-planetary nebulae (PPNe), transition objects between the AGB and Planetary Nebulae (PN) phases, hold the key to understanding how the slowly expanding, largely spherical, circumstellar envelopes (CSEs) of AGB stars transform into highly-aspherical PNs with elongated lobes expanding at high speeds. In 1998, Sahai & Trauger proposed that, as stars evolve off the AGB, they drive collimated fast winds that sweep up and shock the AGB CSE, producing the observed dramatic change in circumstellar geometry and kinematics. The PPN, IRAS 22036+5306 (I22036) offers exciting support for this hy- pothesis. Its highly structured morphology in HST images, and CO J = 3 - 2 interferometric mapping, show that fast (∼200 km/s), collimated jet-like outflows are actively sculpting the CSE into a bipolar PPN. I22036 is thus a key object in clarifying the physics of the transition to bipolarity at the beginning of post-AGB evolution. We present the results of a multiwavelength study of I22036. New HST Hα and [O i] emission- line images clearly delineate the active shocks, and deep broad-band images reveal point-symmetric ansae beyond the tips of the main bipolar lobes, an extended round halo representing the remnant AGB CSE, and the central star. Optical long-slit (echelle) spectroscopy with the Keck/ESI shows the detailed kinematical structure of the shocked regions. Near-IR (1.1–2.4 μm) spectroscopy of I22036 using the Palomar 200-inch/TripleSpec spectrograph shows strong H2 (δV = 1) emission from shocked molecular gas in a bipolar outflow. Prominent CO (δV = 2) bandheads are seen in emission towards the center, indicating very hot (>few × 1000 K) gas in a disk or outflow.