The NINJA-2 project: Detecting and characterizing gravitational waveforms modelled using numerical binary black hole simulations

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dc.contributor.author Sengupta, Anand
dc.date.accessioned 2014-03-24T17:28:57Z
dc.date.available 2014-03-24T17:28:57Z
dc.date.issued 2014-01
dc.identifier.citation Sengupta, Anand et al., “The NINJA-2 project: detecting and characterizing gravitational waveforms modelled using numerical binary black hole simulations”, arXiv, Cornell University Library, DOI: arXiv:1401.0939 [gr-qc], Jan. 2014. en_US
dc.identifier.issn 0264-9381
dc.identifier.issn 1361-6382
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/973
dc.identifier.uri http://dx.doi.org/10.1088/0264-9381/31/11/115004
dc.description.abstract The Numerical INJection Analysis (NINJA) project is a collaborative e ort between members of the numerical relativity and gravitational-wave astrophysics communities. The purpose of NINJA is to study the ability to detect gravitationalwaves emitted from merging binary black holes and recover their parameters with next-generation gravitational-wave observatories. We report here on the results of the second NINJA project, NINJA-2, which employs 60 complete binary black hole hybrid waveforms consisting of a numerical portion modelling the late inspiral, merger, and ringdown stitched to a post-Newtonian portion modelling the early inspiral. In a blind injection challenge" similar to that conducted in recent LIGO and Virgo science runs, we added 7 hybrid waveforms to two months of data recolored to predictions of Advanced LIGO and Advanced Virgo sensitivity curves during their rst observing runs. The resulting data was analyzed by gravitational-wave detection algorithms and 6 of the waveforms were recovered with false alarm rates smaller than 1 in a thousand years. Parameter estimation algorithms were run on each of these waveforms to explore the ability to constrain the masses, component angular momenta and sky position of these waveforms. We nd that the strong degeneracy between the mass ratio and the black holes' angular momenta will make it di cult to precisely estimate these parameters with Advanced LIGO and Advanced Virgo. We also perform a large-scale monte-carlo study to assess the ability to recover each of the 60 hybrid waveforms with early Advanced LIGO and Advanced Virgo sensitivity curves. Our results predict that early Advanced LIGO and Advanced Virgo will have a volume-weighted average sensitive distance of 300Mpc (1Gpc) for 10M + 10M (50M + 50M ) binary black hole coalescences. We demonstrate that neglecting the component angular momenta in the waveform models used in matched- ltering will result in a reduction in sensitivity for systems with large component angular momenta. This reduction is estimated to be up to 15% for 50M + 50M binary black hole coalescences with almost maximal angular momenta aligned with the orbit when using early Advanced LIGO and Advanced Virgo sensitivity curves. en_US
dc.description.statementofresponsibility by Anand Sengupta et al.,
dc.format.extent vol. 31, no. 11
dc.language.iso en en_US
dc.publisher IOP Publishing
dc.subject LIGO en_US
dc.subject Numerical INJection Analysis en_US
dc.subject Quantum Cosmology en_US
dc.title The NINJA-2 project: Detecting and characterizing gravitational waveforms modelled using numerical binary black hole simulations en_US
dc.type Article
dc.relation.journal Classical and Quantum Gravity


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