Jul 22 – 26, 2024
Europe/Lisbon timezone

On cosmological clustering of Gravitational Wave events

Jul 23, 2024, 10:10 AM
20m
Auditorium C.1

Auditorium C.1

Department of Physics (University of Coimbra)

Speaker

José Fonseca (Institute of Astrophysics and Space Sciences)

Description

Traditional large-scale structure surveys estimate the power spectra from galaxy surveys where distances are estimated based on the observed redshift. But not all tracers of dark matter, such as supernovae Type Ia and gravitational wave merger events, have a measured redshift; instead, they provide an observed luminosity distance. Therefore the natural estimator would be the observed number counts in luminosity distance space. In this talk, we would review the full calculation of clustering in luminosity distance space including all light-cone effects, and establish the differences with redshift space. We will also present models for the biases that affect the observed angular power spectrum. Additionally we will discuss the implication of cosmological constraints can have in the properties of BH population responsible for GW events.

Primary author

José Fonseca (Institute of Astrophysics and Space Sciences)

Presentation materials