Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2006-05-17
Int.J.Mod.Phys.D15:2209-2216,2006
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
8 pages. This essay received an honorable mention in the Gravity Research Foundation Essay Competition, 2006
Scientific paper
10.1142/S0218271806009637
The evidence for supermassive Kerr black holes in galactic centers is strong and growing, but only the detection of gravitational waves will convincingly rule out other possibilities to explain the observations. The Kerr spacetime is completely specified by the first two multipole moments: mass and angular momentum. This is usually referred to as the ``no-hair theorem'', but it is really a ``two-hair'' theorem. If general relativity is the correct theory of gravity, the most plausible alternative to a supermassive Kerr black hole is a rotating boson star. Numerical calculations indicate that the spacetime of rotating boson stars is determined by the first three multipole moments (``three-hair theorem''). LISA could accurately measure the oscillation frequencies of these supermassive objects. We propose to use these measurements to ``count their hair'', unambiguously determining their nature and properties.
Berti Emanuele
Cardoso Vitor
No associations
LandOfFree
Supermassive black holes or boson stars? Hair counting with gravitational wave detectors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Supermassive black holes or boson stars? Hair counting with gravitational wave detectors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supermassive black holes or boson stars? Hair counting with gravitational wave detectors will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-489692