1. Cross-correlating galaxy catalogs and gravitational waves: A tomographic approach
- Author
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Alessandro Cuoco, Surabhi Sachdev, Pasquale D. Serpico, Francesca Calore, Tania Regimbau, Laboratoire d'Annecy-le-Vieux de Physique Théorique (LAPTH), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), and Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
- Subjects
neutron star: binary ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Astrophysics::High Energy Astrophysical Phenomena ,Monte Carlo method ,FOS: Physical sciences ,Binary number ,Scale (descriptive set theory) ,detector: network ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics ,01 natural sciences ,localization ,Gravitational waves ,General Relativity and Quantum Cosmology ,binary: coalescence ,0103 physical sciences ,structure ,Large scale structure of the Universe ,010303 astronomy & astrophysics ,Physics ,Cosmology, Gravitational waves, Large scale structure of the Universe ,010308 nuclear & particles physics ,Gravitational wave ,Detector ,gravitational radiation ,family: 3 ,sensitivity ,gravitational radiation detector ,Galaxy ,Cosmology ,detector: sensitivity ,Black hole ,Automatic Keywords ,Neutron star ,black hole: coalescence ,gravitational radiation: emission ,galaxy ,numerical calculations: Monte Carlo ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
Unveiling the origin of the coalescing binaries detected via gravitational waves (GW) is challenging, notably if no multi-wavelength counterpart is detected. One important diagnostic tool is the coalescing binary distribution with respect to the large scale structures (LSS) of the universe, which we quantify via the cross-correlation of galaxy catalogs with GW ones. By using both existing and forthcoming galaxy catalogs and using realistic Monte Carlo simulations of GW events, we find that the cross-correlation signal should be marginally detectable in a 10-year data taking of advanced LIGO-Virgo detectors at design sensitivity, at least for binary neutron star mergers. The expected addition of KAGRA and LIGO-India to the GW detector network would allow for a firmer detection of this signal and, in combination with future cosmological surveys, would also permit the detection of cross-correlation for coalescing black holes. Such a measurement may unveil, for instance, a primordial origin of coalescing black holes. To attain this goal, we find that it is crucial to adopt a tomographic approach and to reach a sufficiently accurate localization of GW events. The depth of forthcoming surveys will be fully exploited by third generation GW detectors such as the Einstein Telescope or the Cosmic Explorer, which will allow one to perform precision studies of the coalescing black hole LSS distribution and attain rather advanced model discrimination capabilities., Comment: 14 pages, 11 multi-panel figures. v2: Improved discussion and presentation, results and conclusions unchanged; closely matches published version
- Published
- 2020