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We present high spatial resolution ($\approx$ 60--90 milliarcseconds) imagesof the molecular hydrogen emission in the Planetary Nebula (PN) NGC 2346. Thedata were acquired during the System Verification of the Gemini Multi-ConjugateAdaptive Optics System + Gemini South Adaptive Optics Imager. At the distanceof NGC 2346, 700 pc, the physical resolution corresponds to $\approx$ 56 AU,which is slightly higher than that an [N II] image of NGC 2346 obtained withHST/WFPC2. With this unprecedented resolution we were able to study in detailthe structure of the H$_2$ gas within the nebula for the first time. We foundit to be composed of knots and filaments, which at lower resolution hadappeared to be a uniform torus of material. We explain how the formation of theclumps and filaments in this PN is consistent with a mechanism in which acentral hot bubble of nebular gas surrounding the central star has beendepressurized, and the thermal pressure of the photoionized region drives thefragmentation of the swept-up shell.

High resolution imaging of NGC 2346 with GSAOI/GeMS: disentangling the planetary nebula molecular structure to understand its origin and evolution