Probing modified gravitational wave propagation with strongly lensed coalescing binaries
| Autor: | Stefano Foffa, Francesco Iacovelli, Andreas Finke, Michele Mancarella, Michele Maggiore |
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| Přispěvatelé: | Finke, A, Foffa, S, Iacovelli, F, Maggiore, M, Mancarella, M |
| Rok vydání: | 2021 |
| Předmět: |
Physics
Cosmology and Nongalactic Astrophysics (astro-ph.CO) Einstein Telescope Gravitational wave Detector FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics General Relativity and Quantum Cosmology Galaxy LIGO Third generation strong lensing Sensitivity (control systems) KAGRA dark energy gravitational wave Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | Physical Review D. 104 |
| ISSN: | 2470-0029 2470-0010 |
| DOI: | 10.1103/physrevd.104.084057 |
| Popis: | It has been recently shown that quadruply lensed gravitational-wave (GW) events due to coalescing binaries can be localized to one or just a few galaxies, even in the absence of an electromagnetic counterpart. We discuss how this can be used to extract information on modified GW propagation, which is a crucial signature of modifications of gravity at cosmological scales. We show that, using quadruply lensed systems, it is possible to constrain the parameter $\Xi_0$ that characterizes modified GW propagation, without the need of imposing a prior on $H_0$. A LIGO/Virgo/Kagra network at target sensitivity might already get a significant measurement of $\Xi_0$, while a third generation GW detector such as the Einstein Telescope could reach a very interesting accuracy. Comment: 11 pages, 5 figures |
| Databáze: | OpenAIRE |
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