Séminaire/Seminar Galaxies |
| « Connecting the Progenitors of Cosmic Web across Cosmic Time » |
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Hannah Jhee |
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Galaxy halos evolve differently according to the environment
they live in, while the environment itself evolves as well. While it is known that large-scale filaments are, as highly anisotropic environments, responsible for changing in halos' orbital motion, morphology, spin or mass, structural evolution effect is underestimated so far. In this work, using DisPerSE, we extract filament structures from smoothed density fields from z=0 to z=3. Each filament structure at each snapshot, starting from a node and ending at another node, is reconstructed using critical point information, and their progenitors are traced based on similarities in spatial extent. From the constructed trees of filament, we examine individual detailed properties of the densities, radii and velocities, and how these evolution affects nearby halos. |
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jeudi 1 février 2024 - 11:30 Salle des séminaires Évry Schatzman Institut d'Astrophysique de Paris |
| Page web du séminaire / Seminar's webpage |