Dec 13 – 15, 2023
Centre de Calcul de l'IN2P3
Europe/Paris timezone

Super-Sample Covariance in unbinned cluster count analyses

Dec 14, 2023, 10:00 AM
20m
Amphithéâtre (Centre de Calcul de l'IN2P3)

Amphithéâtre

Centre de Calcul de l'IN2P3

CC-IN2P3 / CNRS 21 Av. Pierre de Coubertin 69100 Villeurbanne N 45° 46.95 E 04°51.92

Speaker

Constantin Payerne (LPSC (IN2P3))

Description

Cosmological parameters can be inferred from the measurement of cluster abundance in the unbinned regime. The standard unbinned likelihood is based on Poisson statistics and does not include the Super-Sample Covariance (SSC), assumed to be negligible, arising from the fluctuation and clustering of the underlying matter density field. In this talk, I present a formalism to account for SSC in the unbinned regime and compare it to the standard unbinned approach.

Author

Constantin Payerne (LPSC (IN2P3))

Presentation materials