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Characterizing Precession in Binary Sources of Gravitational Waves

02/03/2012 - 1:00pm to 2:00pm
Rob Owen
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The next frontier of research in numerical relativity will involve a detailed exploration of systems whose orbital planes precess due to nonaligned angular momenta. Tools are needed to characterize this precession, and to factor out the modulation it imprints in the spherical harmonic decomposition of the gravitational waveform. Care must be taken that the demodulated waveform is essentially independent of arbitrary factors, such as the initial orientation of the system. I will discuss some of the interesting geometry that arises in this context, and present a demodulation procedure that fixes the waveform in this way.