Recently polarization curves were considered during microlensing by noncompact objects. In the framework of the singular density distribution model one can conclude that polarization curves for compact and noncompact objects demonstrated very distinguishable shapes, but light curves had similar shapes for compact and noncompact objects in the cases. Some properties of the singular model of noncompact lens are degenerate and we do not observe the properties for the nonsingular model. For example, it is impossible to get the polarization curve with two peaks when the respective light curve have only one maximum. When light curves for compact and noncompact objects have different shapes then polarization curves have different shapes for the cases and it is possible to distinguish the objects in principle.
19th Texas Symposium on Relativistic Astrophysics and Cosmology
- Pub Date:
- December 1998