Black Holes in the Galaxy

Abstract

The most compelling evidences for the existence of stellar-mass black holes have been obtained through observations of X-ray binary systems. The application of classical methods and the development of new techniques have allowed us to increase the number of stellar-mass black holes known. I summarize here the observational signatures of the black holes, such as the mass determination, the event horizon and the spin. I also present some observational results on the Galactic centre black hole.