Variable placement of templates technique in a 2D parameter space for binary inspiral searches

Abstract

In the search for binary systems inspiral signal in interferometric gravitational waves detectors, one needs the generation and placement of a grid of templates. We present an original technique for the placement in the associated parameter space, that makes use of the variation of size of the isomatch ellipses in order to reduce the number of templates necessary to cover the parameter space. This technique avoids the potentially expensive computation of the metric at every point, at the cost of having a small number of ``holes'' in the coverage, representing a few percent of the surface of the parameter space, where the match is slightly lower than specified. A study of the covering efficiency, as well as a comparison with a very simple regular tiling using a single ellipse is made. Simulations show an improvement varying between 6% and 30% for the computing cost in this comparison.

28 pages, 28 figures,submitted to CQG, fixed typos, added sections following referees comments

References in corpus (6)

• Search templates for gravitational waves from inspiraling binaries: Choice of template spacing
• Matched filtering of gravitational waves from inspiraling compact binaries: Computational cost and template placement
• Filtering post-Newtonian gravitational waves from coalescing binaries
• An elliptical tiling method to generate a 2-dimensional set of templates for gravitational wave search
• A faster implementation of the hierarchical search algorithm for detection of gravitational waves from inspiraling compact binaries
• Optimum Placement of Post-1PN GW Chirp Templates Made Simple at any Match Level via Tanaka-Tagoshi Coordinates

Cited by in corpus (9)

• TIGER: A data analysis pipeline for testing the strong-field dynamics of general relativity with gravitational wave signals from coalescing compact binaries
• A template bank to search for gravitational waves from inspiralling compact binaries I: physical models
• Gravitational waves from inspiralling compact binaries: hexagonal template placement and its efficiency in detecting physical signals
• Template-based searches for gravitational waves: efficient lattice covering of flat parameter spaces
• Random template banks and relaxed lattice coverings
• Cover art: issues in the metric-guided and metric-less placement of random and stochastic template banks
• Searching for gravitational-wave signals emitted by eccentric compact binaries using a non-eccentric template bank: implications for ground-based detectors
• A template bank to search for gravitational waves from inspiralling compact binaries: II. Phenomenological model
• Sparse sky grid for the coherent detection of gravitational wave bursts