One to many: comparing single gravitational-wave events to astrophysical populations

We do population analysis in gravitational waves all the time now. That is: we compare many observations from GW experiments against many simulated datapoints from simulations. But what if you only have one observation? That could be a LIGO guy that is kind of an outlier (think GW190521) or maybe a datapoint from a future detector (think LISA) that feels lonely in his parameter space. Don’t look further, this is stats for you (and Matt’s last paper as a grad student…)

M. Mould, D. Gerosa, M. Dall’Amico, M. Mapelli.
Monthly Notices of the Royal Astronomical Society 525 (2023) 3986–3997. arXiv:2305.18539 [astro-ph.HE].