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SUMMARY:Testing the No-Hair Theorem with Astrophysical Black Holes - Dimit
 rios Psaltis
DTSTART:20100324T113000Z
DTEND:20100324T123000Z
UID:TALK23947@talks.cam.ac.uk
CONTACT:Dr Hardip Sanghera
DESCRIPTION:The Kerr spacetime of spinning black holes is one of the most 
 intriguing predictions of Einstein's theory of General Relativity. The spe
 cial 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 reali
 stic axisymmetric solution to the vacuum field equations. Recent and antic
 ipated advances in observations of black holes throughout the electromagne
 tic spectrum have both secured our understanding of their basic properties
  and opened new opportunities for devising tests of gravity theories. In t
 his talk\, I will show that observations of continuum and\nline spectra fr
 om accreting black-hole candidates with current and future instruments can
  provide the first direct test of the no-hair theorem. I will also discuss
  how the imaging observations of the inner accretion flow around the black
  hole in the center of the Milky Way can help us map the spacetime in the 
 vicinity of its horizon and lead to a detailed test of the Kerr solution.
LOCATION:Ryle Large Meeting Room\, Kavli Building
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