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キーワード:
General Relativity and Quantum Cosmology, gr-qc
要旨:
Parameter estimation of binary-black-hole merger events in gravitational-wave
data relies on matched-filtering techniques, which, in turn, depend on accurate
model waveforms. Here we characterize the systematic biases introduced in
measuring astrophysical parameters of binary black holes by applying the
currently most accurate effective-one-body templates to simulated data
containing non-spinning numerical-relativity waveforms. For advanced
ground-based detectors, we find that the systematic biases are well within the
statistical error for realistic signal-to-noise ratio (SNR). These biases grow
to be comparable to the statistical errors at high ground-based-instrument SNRs
(SNR=50), but never dominate the error budget. At the much larger
signal-to-noise ratios expected for space-based detectors, these biases will
become large compared to the statistical errors, but for astrophysical black
hole mass estimates the absolute biases (of at most a few percent) are still
fairly small.
