14–16 Jan 2026
INFN - Pisa
Europe/Rome timezone

Population-level effects due to mismodeling and degeneracy at the single-event level

16 Jan 2026, 10:15
25m
Room Galileo Galilei (131), ground floor (INFN - Pisa)

Room Galileo Galilei (131), ground floor

INFN - Pisa

Polo Fibonacci, Largo Bruno Pontecorvo 3, Building C

Speaker

Caroline Owen (University of Milano-Bicocca)

Description

Identifying population-level correlations among black hole parameters is an important goal of gravitational wave astronomy. Such correlations will likely be critical in understanding the formation channels of compact bodies in our Universe. However, from signal detection to single-event parameter estimation to population-level hierarchical inference, there are many factors that could lead to the incorrect identification of correlations that do not exist in the data. We are particularly interested in understanding the circumstances under which mismodeling and degeneracy at the level of single-event parameter estimation can produce false-positive identification of correlation between uncorrelated parameters at the population level. We explore these effects in the context of a toy model.

Author

Caroline Owen (University of Milano-Bicocca)

Presentation materials