Planetary Nebulae Shaped By Common Envelope Evolution

Understand

The morphologies of planetary nebula have long been believed to be due to wind shaping processes in which a fast wind from the central star impacts a previously ejected envelope.

• Asymmetries assumed to exist in the slow wind envelope lead to inertial confinement shaping the resulting interacting winds flow.
• We present new results demonstrating the effectiveness of Common Envelope Evolution (CEE) at producing aspherical envelopes which, when impinged upon by a spherical fast stellar wind, produce highly bipolar, jet-like outflows.
• We have run two simple cases using the output of a single PHANTOM SPH CEE simulation.