Séminaire Doctoral / Seminar PhD |
| « Dark matter halo dynamics in 2D Vlasov simulations: a self-similar approach » |
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Abineet Parichha |
| Understanding dark matter halo dynamics can be pivotal to unravelling the nature of dark matter particles. Analytical treatment of the multistream flows inside the splashback radius of a collapsed cold dark matter halo using various self-similar approaches already exist. In this work, we adapt the Fillmore and Goldreich self-similar solutions to data from 2D Vlasov-Poisson (ColdICE) simulations of monolithic halos seeded with sin-wave initial conditions. We measure trajectories in position and phase-space, mass and density profiles and compare these to predictions from the self-similar model, with an aim to establish the limits of self-similar behaviour and the factors leading to deviations from it. |
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vendredi 25 octobre 2024 - 16:00 Salle des séminaires Évry Schatzman, Institut d'Astrophysique |
| Page web du séminaire / Seminar's webpage |