Microlensing evidence for super-Eddington disk accretion in quasars
  Gravitational microlensing by the stellar population of lensing galaxies
provides an important opportunity to spatially resolve the accretion disk
structure in strongly lensed quasars. Some of the objects (like Einstein's
cross) are reasonably consistent with the predictions of the standard accretion
disk model. In other cases, the size of the emitting region is larger than
predicted by the standard thin disk theory and practically independent on
wavelength. This may be interpreted as an observational manifestation of an
optically-thick scattering envelope possibly related to super-Eddington
accretion with outflows.
