Orateur
Alexandre Toubiana
(Université de Milan-Bicocca)
Description
Unresolved Galactic binaries produce a confusion foreground that dominates over LISA’s instrumental noise in part of the millihertz band. Extragalactic binaries add a weaker stochastic background that becomes increasingly important as observations accumulate. Both components affect LISA’s sensitivity, and their spectra depend on uncertain astrophysical processes, including tides, mass transfer and cosmic star formation. I will discuss how these uncertainties shape the two signals, present our work towards modelling them jointly, and describe a first step towards using neural networks to link the astrophysical noise to the binary populations that produce it.