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  Detection of (2,2) quasinormal mode from a population of black holes with a constructive summation method

Costa, C. F. D. S., Tiwari, S., Klimenko, S., & Salemi, F. (2018). Detection of (2,2) quasinormal mode from a population of black holes with a constructive summation method. Physical Review D, 98: 024052. doi:10.1103/PhysRevD.98.024052.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-EA06-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-E985-1
Genre: Journal Article
Other : Constructive summation of the (2,2) quasi normal mode from a population of black holes

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 Creators:
Costa, C. F. Da Silva, Author
Tiwari, S., Author
Klimenko, S., Author
Salemi, F.1, Author              
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: The quasi normal modes (QNMs) associated with gravitational-wave signals from binary black hole (BBH) mergers can provide deep insight into the remnant's properties. Once design sensitivity is achieved, present ground-based gravitational wave interferometers could detect potentially hundreds of BBH signals in the coming years. For most, the ringdown phase will have a very weak signal-to-noise ratio (SNR). Signal summation techniques allow information extraction from the weak SNR ringdowns. We propose a method to constructively sum the (2,2) QNM from different BBH signals by synchronizing and rescaling them. The parameter space adopted to test the method is presently limited to mass ratio $q\leq3$, initially non-spinning black holes with face-on orientation. Moreover, since the synchronisation procedure fails for the weakest signals, we select all ringdowns with SNR above 2.6. Under these conditions, we show that for different BBH populations, 40 to 70% of all the potential detections could be used for the summation while still ensuring a summed SNR of $\sim$80% of the maximal achievable SNR (i.e. for ideally synchronized signals).

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 Dates: 2017-11-012017-11-072018
 Publication Status: Published in print
 Pages: 7 pages, 10 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1711.00551
DOI: 10.1103/PhysRevD.98.024052
URI: http://arxiv.org/abs/1711.00551
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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 98 Sequence Number: 024052 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258