There was an hour-long conversation this morning among the coauthors of Eilers et al. We discussed inconsistencies in the model as described in that paper. It was a wide-ranging discussion! There are no self-consistent, steady-state, non-axisymmetric models for disks! So we are building models in which a symmetric disk is stirred or modified by a rigid potential. Our issues are all about how to make this model useful for understanding the Milky Way, which is certainly not being stirred by a rigid, rotating, m=2 potential perturbation! There was quite a range of positions on the call, but I think pragmatism won the day. We all left a bit confused.
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