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  Global parameter-space correlations of coherent searches for continuous gravitational waves.

Prix, R., & Itoh, Y. (2005). Global parameter-space correlations of coherent searches for continuous gravitational waves. Classical and Quantum Gravity, S1003-S1012.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4F05-9 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4F06-7
Genre: Conference Paper

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 Creators:
Prix, Reinhard1, Author              
Itoh, Yousuke2, Author
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              
2Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              

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 Abstract: The space of phase parameters (sky position, frequency, spindowns) of a coherent matched-filtering search for continuous gravitational waves from isolated neutron stars shows strong global correlations ('circles in the sky'). In the local limit this can be analysed in terms of a parameter-space metric, but the global properties are less well studied. In this work, we report on our recent progress in understanding these global correlations analytically for short to intermediate (less than a month, say) observation times and neglecting spindowns. The location of these correlation circles in parameter space is found to be determined mostly by the orbital velocity of the earth, while the spin motion of the detector and the antenna patterns only contribute significantly to the amplitude of the detection statistic along these circles.

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Language(s): eng - English
 Dates: 2005
 Publication Status: Published in print
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Title: 9th annual Gravitational Wave Data Analysis Workshop
Place of Event: Annecy, France
Start-/End Date: 2004-12-15 - 2004-12-18

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Title: Classical and Quantum Gravity
Source Genre: Journal
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Pages: - Volume / Issue: - Sequence Number: - Start / End Page: S1003 - S1012 Identifier: -