Good job, Nan. The above is the shear map of a illustris halo calculated using your code.
I will work on the flexion implementation. And see if something interesting could be done.
This is just a test for lensing simulation based on Illustris simulation, I will post the lensed arc using Illustris halos later, so Wentao closed this one, thanks @WentaoLuo.
Good job, Nan. The above is the shear map of a illustris halo calculated using your code. I will work on the flexion implementation. And see if something interesting could be done.