Cosmic Rhythms

Session

Large scale sctructure I

11 Sept 2026, 14:00

Auditório Ministro João Alberto Lins e Barros (CBPF)

Conveners

Large scale sctructure I

• Isabela Santiago de Matos (University of Portsmouth)
• Martin Makler (CBPF)

Large scale sctructure I

• Martin Makler (CBPF)
• Isabela Santiago de Matos (University of Portsmouth)

98. Novel results in perturbation theory for LSS

Henrique Rubira (LMU/Cambridge)

11/09/2026, 14:00

Major improvements in the theoretical understanding of LSS have been possible due to the effective field theory approach. After an overview of the perturbation theory applications for LSS, I will discuss how to go beyond the one-loop calculation, presenting novel two-loop results and their information content (both for clustering and lensing). I will also show how to extract information from...

83. Cosmological and astrophysical aspects of 21 cm intensity mapping surveys

Camila Novaes (Instituto Nacional de Pesquisas Espaciais)

11/09/2026, 16:30

Oral Talk

Intensity mapping (IM) of the redshifted 21 cm line emission from neutral hydrogen is an efficient technique for surveying the large-scale structure of the Universe. In this talk, I discuss cosmological and astrophysical aspects of 21 cm IM, addressing instrumental limitations that affect clustering measurements, the role of cross-correlations between radio and photometric galaxy surveys, and...

86. Cosmology Likelihood for Observables in Euclid

Prof. Shahab Joudaki (CIEMAT, Spain), Shahab Joudaki (CIEMAT)

11/09/2026, 16:45

Oral Talk

I will provide a description of the code implementation and structure of Cosmology Likelihood for Observables in Euclid (CLOE), developed by members of the Euclid Consortium. CLOE is a modular Python code for computing the theoretical predictions of cosmological observables and evaluating them against state-of-the-art data from galaxy surveys such as Euclid in a unified likelihood. This...

41. Cosmology with LVK Dark Sirens and Euclid latest catalogs available

Sarah FERRAIUOLO (AMY&Sapienza)

11/09/2026, 17:00

Oral Talk

We present a study aimed at using the galaxy catalog released by Euclid for Gravitational-wave (GW) cosmology. I will firstly present an overview of the galaxy catalogs released and planned to be released with Euclid, focusing on their overlap with current GW detections. We identified six candidate events with significant spatial overlap with Euclid. I then focus on presenting the...

70. Environmental dependent clustering in modified gravity simulations

Joaquin Armijo (IFUSP)

11/09/2026, 17:15

Oral Talk

I'll showcase the study of environment-dependent clustering using the marked correlation function applied to Hu-Sawicki $f(R)$ modified gravity simulations. This gravity theory enriches the structure formation by enhancing gravity in a scale-dependent form. By employing a multi-scale cosmic structure finder algorithm, we define the cosmic environments divided in: nodes, filaments, walls and...