You can't always get what you want...

You can't always get what you want:

Could not create tidal tails on relaxed merger remnants with NFW halo models
Truncation radii are a function of scale length, changes how we can approach the problem

However:

May be able to define tidal tails based on whether they end up with a critical energy

This might correlate with the maximum of the overall rotation curve, but more work is needed.