8–12 Sept 2026
CBPF
America/Sao_Paulo timezone

The effect of the Local Universe on the CMB

8 Sept 2026, 15:20
2m
Auditório Ministro João Alberto Lins e Barros (CBPF)

Auditório Ministro João Alberto Lins e Barros

CBPF

Rua Dr. Xavier Sigaud, 150 - Urca Rio de Janeiro - RJ - Brasil CEP: 22290-180

Speaker

Facundo Toscano (IATE-CONICET, UNC)

Description

I will present the most recent results of our group related to the discovery of a systematic effect on the CMB temperature maps when we consider the nearest local structures in the Universe. Being statistically significant results compared to simulations from the Planck Collaboration, I will show how nearby galaxies and filaments have a negative temperature profile while local voids have positive temperatures. Furthermore, I will explore the possibility of obtaining different cosmological parameters taking into account this new extragalactic foreground.

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