LCDM and lensing


Constraints on the nature of dark matter from galaxy scale lensing andcluster
scale lensing:

(i) Inferences from tidal stripping of dark matter halos
(ii) Inferences from clusters where the barycenter is offset from the
center of mass as in the case of the bullet cluster.
(iii) Inferences from the shape (ellipticity) of the cluster
potential and constraints on self-interacting models.
(iv) Inferences from inner density profile slopes in galaxy lenses.
(v) Inferences from microlensing studies of galaxy halos (extending
to galaxies beyond our own). [Natarajan]