Black hole binaries

摘要: The black hole is the most exotic object in universe predicted as a direct consequence of general relativity. Research stellar mass holes dates back to 1939, when Oppenheimer and ***Snyder (1939) possible presence holes. They discovered that, based on relativity, sufficiently massive star would collapse indefinitely all thermonuclear energy was exhausted disappear inside sphere limiting radius from which even photons could not come out (the “event horizon”). This radius, called Schwartzschild equals twice gravitational r g (= MG/c 2, where M, G c are mass, constant light velocity, respectively). Such an what later hole. However, remained merely theoretical objects for long time.