The search of higher multipole radiation in gravitational waves from compact binary coalescences by a minimally-modelled pipeline

Abstract

The coherent WaveBurst (cWB) pipeline implements a minimally-modelled search to find a coherent response in the network of gravitational wave detectors of the LIGO-Virgo Collaboration in the time-frequency domain. In this manuscript, we provide a timely introduction to an extension of the cWB analysis to detect spectral features beyond the main quadrupolar emission of gravitational waves during the inspiral phase of compact binary coalescences; more detailed discussion will be provided in a forthcoming paper [1]. The search is performed by defining specific regions in the time-frequency map to extract the energy of harmonics of main quadrupole mode in the inspiral phase. This method has already been used in the GW190814 discovery paper (Astrophys. J. Lett. 896 L44). Here we show the procedure to detect the (3, 3) multipole in GW190814 within the cWB framework. Keywords: gravitational waves, analysis, multipoles, compact binary coalescences

arXiv comment5 pages, Proceedings for the "17th International Conference on Topics in Astroparticle and Underground Physics (TAUP)"

References in corpus (13)

• GW190814: Gravitational Waves from the Coalescence of a 23 M${}_{\odot }$ Black Hole with a 2.6 M${}_{\odot }$ Compact Object
• Bilby: A user-friendly Bayesian inference library for gravitational-wave astronomy
• Robust parameter estimation for compact binaries with ground-based gravitational-wave observations using the LALInference software library
• GW190412: Observation of a Binary-Black-Hole Coalescence with Asymmetric Masses
• An improved effective-one-body model of spinning, nonprecessing binary black holes for the era of gravitational-wave astrophysics with advanced detectors
• Method for detection and reconstruction of gravitational wave transients with networks of advanced detectors
• Enriching the Symphony of Gravitational Waves from Binary Black Holes by Tuning Higher Harmonics
• First higher-multipole model of gravitational waves from spinning and coalescing black-hole binaries
• Frequency domain reduced order model of aligned-spin effective-one-body waveforms with higher-order modes
• Coherent WaveBurst, a pipeline for unmodeled gravitational-wave data analysis
• Higher order gravitational-wave modes with likelihood reweighting
• A wider look at the gravitational-wave transients from GWTC-1 using an unmodeled reconstruction method
• Unveiling the spectrum of inspiralling binary black holes