Treatment of calibration uncertainty in multi-baseline cross-correlation searches for gravitational waves

John T Whelan, Emma L Robinson, Joseph D Romano, Eric Thrane

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

8 Citations (Scopus)


Uncertainty in the calibration of gravitational wave (GW) detector data leads to systematic errors, which must be accounted for in setting limits on the strength of GW signals. When cross-correlation measurements are made using data from a pair of instruments, as in searches for a stochastic GW background, the calibration uncertainties of the individual instruments can be combined into an uncertainty associated with the pair. With the advent of multi-baseline GW observation (e.g., networks consisting of multiple detectors such as the LIGO observatories and Virgo), a more sophisticated treatment is called for. We have described how the correlations between calibration factors associated with different pairs can be taken into account by marginalizing over the uncertainty associated with each instrument.
Original languageEnglish
Title of host publicationJournal of Physics: Conference Series
Subtitle of host publication7th International Conference on Gravitation and Cosmology, ICGC 2011; Goa; India; 14 December 2011 through 19 December 2011
EditorsSubhabrata Majumdar, B S Sathyaprakash, Tejinder Pal Singh, Tarun Souradeep
Place of PublicationBristol UK
PublisherIOP Publishing
Number of pages4
ISBN (Print)1742-6588
Publication statusPublished - 2014
Externally publishedYes
EventInternational Conference on Gravitation and Cosmology (ICGC) 2011 - Holiday Inn Goa, Mobor Beach, Goa, India
Duration: 14 Dec 201119 Dec 2011
Conference number: 7th


ConferenceInternational Conference on Gravitation and Cosmology (ICGC) 2011
Abbreviated titleICGC 2011
CityMobor Beach, Goa
Internet address

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