NRAO/Socorro Colloquium Series

Dimitrios Psaltis

University of Arizona


Testing the No Hair Theorem with the Black Hole in the Center of the Milky Way


The Kerr spacetime of spinning black holes is one of the most intriguing predictions of Einstein's theory of general relativity. The special role this spacetime plays in the theory of gravity is encapsulated in the no-hair theorem, which states that the Kerr metric is the only realistic black-hole solution of the vacuum field equations. Recent and anticipated advances in the observations of black holes throughout the electromagnetic spectrum have secured our understanding of their basic properties while opening up new opportunities for devising tests of the Kerr metric. In this talk, I will show how imaging and spectroscopic observations of the black hole in the center of the Milky Way with current and future instruments can lead to the first direct test of the no-hair theorem with an astrophysical object.






October 7, 2011
11:00 am

Array Operations Center Auditorium

All NRAO employees are invited to attend via video, available in Charlottesville Room 230, Green Bank Room 137 and Tucson N525.

Local Host: Joan Wrobel