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General Relativity and Quantum Cosmology, gr-qc
Abstract:
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.
