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Empirically extending the range of validity of parameter-space metrics for all-sky searches for gravitational-wave pulsars

MPG-Autoren
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Wette,  Karl
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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1607.00241.pdf
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Zitation

Wette, K. (2016). Empirically extending the range of validity of parameter-space metrics for all-sky searches for gravitational-wave pulsars. Physical Review D, 94: 122002. doi:10.1103/PhysRevD.94.122002.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-002A-F9AE-1
Zusammenfassung
All-sky searches for gravitational-wave pulsars are generally limited in sensitivity by the finite availability of computing resources. Semicoherent searches are a common method of maximizing search sensitivity given a fixed computing budget. The work of Wette and Prix [Phys. Rev. D 88, 123005 (2013)] and Wette [Phys. Rev. D 92, 082003 (2015)] developed a semicoherent search method which uses metrics to construct the banks of pulsar signal templates needed to search the parameter space of interest. In this work we extend the range of validity of the parameter-space metrics using an empirically-derived relationship between the resolution (or mismatch) of the template banks and the mismatch of the overall search. This work has important consequences for the optimization of metric-based semicoherent searches at fixed computing cost.