4 papers
Cosmic string gravitational wave backgrounds at LISA: II. Reconstruction of conventional signals over astrophysical foregrounds
Androniki Dimitriou, Daniel G. Figueroa, Peera Simakachorn +2
We study the reconstruction of conventional cosmic-string signals with LISA in the presence of all major known astrophysical foregrounds expected in the LISA band. These include st…
Cosmic string gravitational wave backgrounds at LISA: I. Signal survey, template reconstruction, and model comparison
Androniki Dimitriou, Daniel G. Figueroa, Peera Simakachorn +1
We present a catalog of gravitational wave background (GWB) signal templates from cosmic-string networks, based on relevant models proposed in the literature. We classify templates…
Simulation-based inference on warm dark matter from HERA forecasts
Quentin Decant, Androniki Dimitriou, Laura Lopez Honorez +1
The redshifted 21cm signal from Cosmic Dawn promises to open a new window into the early history of our universe and enable the probing of an unprecedented comoving survey volume.…
Fast Likelihood-free Reconstruction of Gravitational Wave Backgrounds
Androniki Dimitriou, Daniel G. Figueroa, Bryan Zaldivar
We apply state-of-the-art, likelihood-free statistical inference (machine-learning-based) techniques for reconstructing the spectral shape of a gravitational wave background (GWB).…