作者: Yoshiki Tsunesada , Nobuyuki Kanda , Hiroyuki Nakano , Daisuke Tatsumi , Masaki Ando
DOI: 10.1103/PHYSREVD.71.103005
关键词:
摘要: Gravitational radiation from a slightly distorted black hole with ringdown waveform is well understood in general relativity. It provides probe for direct observation of holes and determination their physical parameters, masses angular momenta (Kerr parameters). For searches using data gravitational wave detectors, matched filtering technique useful. In this paper, we describe studies on problems analysis realistic observational data. Above all, focus template constructions, matches or signal-to-noise ratios (SNRs), detection probabilities Galactic events, accuracies evaluation parameters hairs. design filtering, search parameter ranges separations are determined by requirements acceptable maximum loss SNRs, efficiencies, computational costs. data, however, effects nonstationary noises cause decreases increases errors determinations. These will potentially arise any kind waveforms. To investigate them, have performed artificial signals which generated Monte-Carlo injected into the TAMA300 We employed an efficient method to construct bank filters recently proposed Nakano et al., use criterion such that losses SNRs do not exceed $2%$. found fulfilled examining distribution simulated signals. also shown sensitivity, probability events about $50%$ greater than $20{M}_{\ensuremath{\bigodot}}$ $\mathrm{SNR}g10$. The estimations be consistent spacings, resolutions Kerr evaluated as few $%$ $\ensuremath{\sim}40%$, respectively. They can improved up $l0.9%$ $l24%$ $\mathrm{SNR}\ensuremath{\ge}10$ fine-meshed hierarchical strategy.