Physics
Scientific paper
May 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jphcs.228a2049s&link_type=abstract
Journal of Physics: Conference Series, Volume 228, Issue 1, pp. 012049 (2010).
Physics
1
Scientific paper
Observations of gravitational waves from massive binary black hole systems at cosmological distances can be used to search for a dependence of the speed of propagation of the waves on wavelength, and thereby to bound the mass of a hypothetical graviton. We study the effects of precession of the spins of the black holes and of the orbital angular momentum on the process of parameter estimation based on the method of matched filtering of gravitational-wave signals vs. theoretical template waveforms. For the proposed space interferometer LISA, we show that precession, and the accompanying modulations of the gravitational waveforms, are effective in breaking degeneracies among the parameters being estimated, and effectively restore the achievable graviton-mass bounds to levels obtainable from binary inspirals without spin. For spinning, precessing binary black hole systems of equal masses 106 Modot at 3 Gpc, the lower bounds on the graviton Compton wavelength achievable are of the order of 5 × 1016 km.
Stavridis Adamantios
Will Clifford M.
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