Pre-merger localization of eccentric compact binary coalescences with second-generation gravitational-wave detector networks

Abstract

We study the possibility of pre-merger localization of eccentric compact binary coalescences by second-generation gravitational-wave detector networks. Gravitational waves from eccentric binaries can be regarded as a sequence of pulses, which are composed of various higher harmonic modes than ones with twice the orbital frequency. The higher harmonic modes from a very early inspiral phase will not only contribute to the signal-to-noise ratio, but also allow us to localize the gravitational-wave source before the merger sets in. This is due to the fact that high-frequency gravitational waves are essential for the source localization via triangulation by ground-based detector networks. We found that the single-detector signal-to-noise ratio exceeds 5 at 10 min before the merger for a 1.4--1.4 $M_{\odot }$ eccentric binary neutron stars at 100 Mpc in optimal cases, and it can be localized up to 10 deg${}^2$ at half a minute before the merger by a four-detector network. We will even be able to achieve $\sim$ 10 deg${}^2$ at 10 min before the merger for a face-on eccentric compact binary by a five-detector network.

10 pages, 5 figures, matched to the published version with additional references

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Cited by in corpus (14)

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• Constraining the orbital eccentricity of inspiralling compact binary systems with Advanced LIGO
• Measurement Accuracy of Inspiraling Eccentric Neutron Star and Black Hole Binaries Using Gravitational Waves
• Accuracy of Estimating Highly Eccentric Binary Black Hole Parameters with Gravitational-Wave Detections
• Detecting gravitational waves from highly eccentric compact binaries
• Initial data for binary neutron stars with adjustable eccentricity
• Gravitational wave source localization for eccentric binary coalesce with a ground-based detector network
• Vector theory of gravity: Universe without black holes and solution of dark energy problem
• Testing Vector Gravity with Gravitational Wave Interferometers
• Accuracy of source localization for eccentric inspiraling binary mergers using a ground-based detector network
• Eccentricity enables the earliest warning and localization of gravitational waves with ground-based detectors
• Probability distribution function for inclinations of merging compact binaries detected by gravitational wave interferometers
• Eccentric Pairs: Analytic Gravitational Waves from Binary Black Holes in Elliptic Orbits
• Early Warning From Eccentric Compact Binaries: Template Initialization And Sub-dominant Mode Effects