INVESTIGADORES
GABACH CLEMENT Maria Eugenia
congresos y reuniones científicas
Título:
Shape of black holes
Autor/es:
GABACH CLEMENT MARÍA EUGENIA
Lugar:
Buenos Aires
Reunión:
Congreso; Gravitation, Relativistic Astrophysics and Cosmology Second Argentinian-Brazilian Meeting; 2014
Resumen:
It is well known that celestial bodies tend to be sphericaldue to gravity and that rotation produces deviations from this sphericity.We discuss what is known and expected about the shape of black holes?horizons from their formation to their final, stationary state. We presentsome recent results showing that black hole rotation indeed manifestsin the widening of their central regions, limits their global shapes andenforces their whole geometry to be close to the extreme Kerr horizongeometry at almost maximal rotation speed. The results depend only onthe horizon area and angular momentum. In particular they are entirelyindependent of the surrounding geometry of the spacetime and of thepresence of matter satisfying the strong energy condition. We also discussthe the relation of this result with the Hoop conjecture.