Relatore
Descrizione
The detection of gravitational waves has estabilished a new way to see the Universe. The LIGO-Virgo-KAGRA collaboration, following the current observing run O4, has planned a future one, O5, within this decade. Furthermore, in 2030s third-generation gravitational wave detectors, such as Einstein Telescope and Cosmic Explorer, will become opertive. During the transition phase from second to third generation another observing run is planned, the so-called postO5, in which current advanced interferometers will be further upgraded, in order to achieve the best sensitivity possibile: this is the case of Virgo_nEXT, the upgrade program for Advanced Virgo.
This work presents the observational prospects for the LIGO-Virgo-KAGRA detector network during postO5. We consider compact binary coalescences as sources of gravitational waves, while, for what concerns the detectors, we focus on different noise configurations for Advanced Virgo. The predictions presented in this work will be functional to design the upgrades of current ground-based interferometers in order to maximize the scientific outcome.
We produced a realistic population of compact binary systems by appling accurate astrophysical population synthesis models for the evolution of binary stars across cosmic time and eventually their merger; therefore we simulated the gravitational wave signal expected for these sources. Consequently the observing scenarios for future runs are derived, in terms of the detection rates and localization regions of the detected sources.
In conclusion, this talk shows the observing scenario for the LIGO-Virgo-KAGRA detector network during postO5, highlighting how different noise configurations simulated for Advanced Virgo can impact on the detection and localization capabilities of the network.
