Astrophysical and Cosmological Relevance of the High-Frequency Features in the Stochastic Gravitational-Wave Background

Understand

The stochastic gravitational-wave background (SGWB) produced by merging neutron stars exhibits a peak in the kHz band.

• In this paper, we develop a theoretical framework to exploit this distinctive feature through a Markov Chain Monte Carlo analysis using a simulated dataset of SGWB measurements within this frequency range.
• The aim is to use the SGWB peak as an observable to constrain a set of astrophysical and cosmological parameters that accurately describe the sources of the SGWB.
• We examine how variations in these parameters impact the morphology of the SGWB and investigate the necessary sensitivity to effectively constrain them.