Séminaire Doctoral / Seminar PhD |
| « A theoretical view on the T-web statistical description of the cosmic web » |
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Emma Ayçoberry |
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The objective classification of the cosmic web into different environments is a striving field in large-scale structure studies both as a tool to study in more detail the formation of structures and the link between their properties and the large-scale environment, and as another class of objects whose statistics contain cosmological information.
In this talk, I will present an analytical framework to compute the probability of the different environments in the cosmic web based on the so-called T-web formalism that classifies structures in four different classes (voids, walls, filaments, and knots) by studying the eigenvalues of the Hessian of the gravitational potential, often called tidal tensor. I will present the validity regime of our predictions by comparing those predictions to measurements made in the N-body Quijote simulations. |
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vendredi 10 novembre 2023 - 16:00 Salle du Conseil, Institut d'Astrophysique |
| Page web du séminaire / Seminar's webpage |