Abhas Mitra ( born Abhas Mitra , born June 3, 1955 ) is an Indian astrophysicist . Famous for the fact that in December 2002 he published an article in the journal Physical Letters , stating that a completely black hole , not strictly obeying Einstein's equations , cannot exist according to GR . Having examined the candidates for black holes in 2002, he showed that they all form a magnetic field around themselves, and therefore cannot be strictly black holes.