Searching for periodic sources with LIGO. II. Hierarchical searches

  title={Searching for periodic sources with LIGO. II. Hierarchical searches},
  author={Patrick R. Brady and Teviet Creighton},
  journal={Physical Review D},
The detection of quasi-periodic sources of gravitational waves requires the accumulation of signal-to-noise over long observation times. If not removed, Earth-motion induced Doppler modulations, and intrinsic variations of the gravitational-wave frequency make the signals impossible to detect. These effects can be corrected (removed) using a parameterized model for the frequency evolution. We compute the number of independent corrections $N_p(\Delta T,N)$ required for incoherent search… 
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