Constraints on compact dark matter from the non-observation of gravitational-wave strong lensing
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arXiv
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| Format: | Preprint |
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2024
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| author | Barsode, A. Kapadia, S. J. Ajith, P. |
| author_facet | Barsode, A. Kapadia, S. J. Ajith, P. |
| contents | We use the non-observation of strong lensing of gravitational waves (GWs) in the first three observation runs of LIGO-Virgo detectors to constrain the fraction of dark matter in the form of compact objects in the mass range $10^{6}-10^{9}~{\mathrm{M}_\odot}$. Using a Bayesian formalism supplemented by astrophysical simulations of strong lensing of GWs, we constrain the compact dark matter fraction to $\lesssim 0.4-0.6$ with currently available data and show that they may get significantly tighter in the future. We find that multiple lensing -- i.e., GWs getting deflected by multiple compact objects on their way to us -- is possible. By ignoring this, we underestimate the constraints by a few percent. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_15878 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Constraints on compact dark matter from the non-observation of gravitational-wave strong lensing Barsode, A. Kapadia, S. J. Ajith, P. General Relativity and Quantum Cosmology We use the non-observation of strong lensing of gravitational waves (GWs) in the first three observation runs of LIGO-Virgo detectors to constrain the fraction of dark matter in the form of compact objects in the mass range $10^{6}-10^{9}~{\mathrm{M}_\odot}$. Using a Bayesian formalism supplemented by astrophysical simulations of strong lensing of GWs, we constrain the compact dark matter fraction to $\lesssim 0.4-0.6$ with currently available data and show that they may get significantly tighter in the future. We find that multiple lensing -- i.e., GWs getting deflected by multiple compact objects on their way to us -- is possible. By ignoring this, we underestimate the constraints by a few percent. |
| title | Constraints on compact dark matter from the non-observation of gravitational-wave strong lensing |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2405.15878 |