Microlensing events in the Galactic Bulge

In this work the search or microlensing events in the inner part of the bulge using the VVV data. We have detected 630 microlensing events within an area of 20.68deg2 around the galactic center. The Einstein ring crossing time is the only parameter which has a physical meaning and is degenerate thus can only be studied statistically in large numbers including in the calculations the distributions of the parameters involved which require models of the Milky Way. In this case, the proper motions distribution of different galactic populations can be useful to interpret the results. Also, the study of specific events became attractive. The long timescale events favor the presence of dark stellar remnants such as black holes and neutron stars which are important ingredients in our understanding of stellar evolution, mass distribution, galaxy evolution and structure, dark matter balance, etc.