Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum

Details Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.2106j&link_type=abstract

American Astronomical Society, HEAD meeting #11, #21.06; Bulletin of the American Astronomical Society, Vol. 41, p.692

Astronomy and Astrophysics

Astrophysics

Scientific paper

According to the no-hair theorem, black holes are uniquely described by their mass and spin. In this talk, I will discuss a new framework for testing the no-hair hypothesis. The approach is formulated in terms of a Kerr-like spacetime containing a quadrupole moment that is independent of both mass and spin. If the no-hair theorem is correct, then any deviation from the Kerr metric quadrupole has to be zero. I will show how upcoming spectroscopic observations of iron lines from accreting black holes with IXO as well as VLBI imaging observations of Sgr A* will lead to the first astrophysical test of the no-hair theorem.

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