Oct 13 – 14, 2021
Institut Henri Poincaré
Europe/Paris timezone

On the impact of lensing magnification on galaxy clustering analysis

Not scheduled
20m
Amphithéâtre Hermite (Institut Henri Poincaré)

Amphithéâtre Hermite

Institut Henri Poincaré

11 rue Pierre et Marie Curie, 75005 Paris accès : http://www.ihp.fr/fr/guide_pratique
Contribué

Speaker

Michel-Andrès Breton (Laboratoire d'Astrophysique de Marseille)

Description

In this talk I will discuss about the impact of magnification bias on the determination of the growth rate from redshift-space clustering. We use a the RayGal suite of $N$-body simulations that accounts for the fully non-linear structure formation and perform realistic galaxy clustering analyses, similarly as in observations, in different regime of magnification bias. We investigate a minimal model to account for the magnification effect on the multipole moments of the redshift-space correlation function, and study the accuracy with which the the growth rate of structure parameter can be recovered.

Author

Michel-Andrès Breton (Laboratoire d'Astrophysique de Marseille)

Co-authors

Presentation materials

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