Effect of double spin-precession and higher harmonics on spin-induced quadrupole moment measurements
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2023
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| author | Divyajyoti Krishnendu, N. V. Saleem, Muhammed Colleoni, Marta Vijaykumar, Aditya Arun, K. G. Mishra, Chandra Kant |
| author_facet | Divyajyoti Krishnendu, N. V. Saleem, Muhammed Colleoni, Marta Vijaykumar, Aditya Arun, K. G. Mishra, Chandra Kant |
| contents | We investigate the prospect of performing a null test of binary black hole (BBH) nature using spin-induced quadrupole moment (SIQM) measurements. This is achieved by constraining a deviation parameter ($δκ$) related to the parameter ($κ$) that quantifies the degree of deformation due to the spin of individual binary components on leading (quadrupolar) spin-induced moment. Throughout the paper, we refer to $κ$ as the SIQM parameter and $δκ$ as the SIQM-deviation parameter. The test presented here extends the earlier SIQM-based null tests for BBH nature by employing waveform models that account for double spin-precession and higher modes. We find that waveform with double spin-precession gives better constraints for $δκ$, compared to waveform with single spin-precession. We also revisit earlier constraints on the SIQM-deviation parameter for selected GW events observed through the first three observing runs (O1-O3) of LIGO-Virgo detectors. Additionally, the effects of higher-order modes on the test are also explored for a variety of mass-ratio and spin combinations by injecting simulated signals in zero-noise. Our analyses indicate that binaries with mass-ratio greater than 3 and significant spin precession may require waveforms that account for spin-precession and higher modes to perform the parameter estimation reliably. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_05506 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Effect of double spin-precession and higher harmonics on spin-induced quadrupole moment measurements Divyajyoti Krishnendu, N. V. Saleem, Muhammed Colleoni, Marta Vijaykumar, Aditya Arun, K. G. Mishra, Chandra Kant General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena We investigate the prospect of performing a null test of binary black hole (BBH) nature using spin-induced quadrupole moment (SIQM) measurements. This is achieved by constraining a deviation parameter ($δκ$) related to the parameter ($κ$) that quantifies the degree of deformation due to the spin of individual binary components on leading (quadrupolar) spin-induced moment. Throughout the paper, we refer to $κ$ as the SIQM parameter and $δκ$ as the SIQM-deviation parameter. The test presented here extends the earlier SIQM-based null tests for BBH nature by employing waveform models that account for double spin-precession and higher modes. We find that waveform with double spin-precession gives better constraints for $δκ$, compared to waveform with single spin-precession. We also revisit earlier constraints on the SIQM-deviation parameter for selected GW events observed through the first three observing runs (O1-O3) of LIGO-Virgo detectors. Additionally, the effects of higher-order modes on the test are also explored for a variety of mass-ratio and spin combinations by injecting simulated signals in zero-noise. Our analyses indicate that binaries with mass-ratio greater than 3 and significant spin precession may require waveforms that account for spin-precession and higher modes to perform the parameter estimation reliably. |
| title | Effect of double spin-precession and higher harmonics on spin-induced quadrupole moment measurements |
| topic | General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2311.05506 |