| Description |
!! Please note unusual venue !! Abstract
Ultralight dark matter models have recently gained interest due to its small scales predictions. Their small masses may let them behave as a collection of waves, leading to new phenomena such as a suppression in the mass power spectrum on small scales, the presence of characteristic interference patterns, the formation of soliton cores. In this talk I will consider an ultralight vector field dark matter (VFDM) model with an homogeneous background field pointing in a given direction.
Vector fields source anisotropies in the early universe characterized by a shear tensor which rapidly decays once the fields start oscillating, making them viable dark matter candidates. I will present recent results on the study of the evolution of the background universe with VFDM and large-scale cosmological perturbations in the linear regime, such as the matter power spectrums defined for wave vectors with a given direction. To Join via Zoom: https://zoom.us/j/98028401225 Meeting ID: 980 2840 1225 Passcode: 473129 |
HECAP Seminar - Ultralight Vector Dark Matter, Anisotropies and Cosmological Adiabatic Modes
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