Astrophysical gravitational wave background: from theoretical modelling to detection prospects

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• Giulia Cusin (Institut d'Astrophysique de Paris)
• Monday 17 March 2025, 13:00-14:00
• CMS, Pav. B, CTC Common Room (B1.19) [Potter Room].

If you have a question about this talk, please contact Louis Legrand.

When looking at a population of astrophysical gravitational wave sources we can either decide to focus on those sources that are particularly bright, and build a catalogue, or characterise collectively the superposition of all signals from all sources from the onset of stellar activity until today. This stochastic background of gravitational radiation is an interesting observable as it can allow us to extract astrophysical information that cannot be extracted from the study of individual events. In this talk, I will give an overview of different astrophysical populations expected to generate a stochastic background in the frequency band of current and future gravitational wave detectors. I will then review the state of the art of background modeling and illustrate future detection prospects.

This talk is part of the Cosmology Lunch series.

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