PIRSA:11040107 Scientific Series Strong Gravity

DOI10.48660/11040107

Series: Strong Gravity

Whelan, J. (2011). Cross-Correlation Methods in Continuous Gravitational-Wave Searches. Perimeter Institute. https://pirsa.org/11040107

Whelan, John. Cross-Correlation Methods in Continuous Gravitational-Wave Searches. Perimeter Institute, Apr. 14, 2011, https://pirsa.org/11040107 

@misc{ pirsa_PIRSA:11040107,
  doi = {10.48660/11040107},
  url = {https://pirsa.org/11040107},
  author = {Whelan, John},
  keywords = {Strong Gravity},
  language = {en},
  title = {Cross-Correlation Methods in Continuous Gravitational-Wave Searches},
  publisher = {Perimeter Institute},
  year = {2011},
  month = {apr},
  note = {PIRSA:11040107 see, \url{https://pirsa.org}}
}

Abstract

Cross-correlation of gravitational-wave (GW) data streams has been used to search for stochastic backgrounds, and the same technique was applied to look for periodic GWs from the low-mass X-ray binary (LMXB) Sco X-1. Recently a technique was developed which refines the cross-correlation scheme to take full advantage of the signal model for periodic gravitational waves from rotating neutron stars. By varying the time window over which data streams are correlated, the search can "trade off" between parameter sensitivity and computational cost. I describe this cross-correlation method and potential applications to search LIGO and Virgo data for periodic GWs from systems with partially-known parameters, such as supernova remnants without an associated known pulsar, the center of the Milky Way Galaxy, and LMXBs

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