We study the impact of young clusters on the gravitational wave background from compact binary coalescence. We simulate a catalog of sources from population I/II isolated binary stars and stars born in young clusters, corresponding to one year of observations with second-generation (2G) detectors. Taking into account uncertainties on the fraction of dynamical binaries and star formation parameters, we find that the background is dominated by the population of binary black holes, and we obtain a value of ??gw??25 Hz?? 1/4 1.2??1.38 ???0.65 ?? 10???9 for the energy density, in agreement with the actual upper limits derived from the latest observation run of LIGO???Virgo. We demonstrate that a large number of sources in a specific corrected mass range yields to a bump in the background. This background could be detected with 8 years of coincident data by a network of 2G detectors.

Gravitational background from dynamical binaries and detectability with 2G detectors / Périgois, Carole; Santoliquido, Filippo; Bouffanais, Yann; Di Carlo, Ugo N.; Giacobbo, Nicola; Rastello, Sara; Mapelli, Michela; Regimbau, Tania. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 105:10(2022). [10.1103/PhysRevD.105.103032]

Gravitational background from dynamical binaries and detectability with 2G detectors

Ugo N. Di Carlo;Michela Mapelli;
2022-01-01

Abstract

We study the impact of young clusters on the gravitational wave background from compact binary coalescence. We simulate a catalog of sources from population I/II isolated binary stars and stars born in young clusters, corresponding to one year of observations with second-generation (2G) detectors. Taking into account uncertainties on the fraction of dynamical binaries and star formation parameters, we find that the background is dominated by the population of binary black holes, and we obtain a value of ??gw??25 Hz?? 1/4 1.2??1.38 ???0.65 ?? 10???9 for the energy density, in agreement with the actual upper limits derived from the latest observation run of LIGO???Virgo. We demonstrate that a large number of sources in a specific corrected mass range yields to a bump in the background. This background could be detected with 8 years of coincident data by a network of 2G detectors.
2022
105
10
103032
10.1103/PhysRevD.105.103032
http://arxiv.org/abs/2112.01119v2
Périgois, Carole; Santoliquido, Filippo; Bouffanais, Yann; Di Carlo, Ugo N.; Giacobbo, Nicola; Rastello, Sara; Mapelli, Michela; Regimbau, Tania
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/135616
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