MICROLENSING BY NONCOMPACT INVISIBLE BODIES

The observation of microlensing events toward the Large Magellanic Clo ud has revealed a new population of objects in our Galaxy, which are d ark bodies with masses of the order of 1.1 M-circle dot. The nature of these objects is not yet known, though the most plausible hypothesis is that they are brown dwarfs. Other hypotheses include mirror stars, black holes, and exotic stars consisting of cold dark matter particles . This last hypothesis is attractive from the point of view of modern particle physics. Here, me discuss the possibility of explaining the c urrent observational data in the framework of this hypothesis. We conc lude that at least two of seven OGLE events can be explained by this h ypothesis.