PIRSA:19050025

Structure formation in a dissipative dark sector

Egana-Ugrinovic, D.I. (2019). Structure formation in a dissipative dark sector. Perimeter Institute. https://pirsa.org/19050025

Egana-Ugrinovic, Daniel Ignacio. Structure formation in a dissipative dark sector. Perimeter Institute, May. 14, 2019, https://pirsa.org/19050025 

          @misc{ pirsa_PIRSA:19050025,
            doi = {10.48660/19050025},
            url = {https://pirsa.org/19050025},
            author = {Egana-Ugrinovic, Daniel Ignacio},
            keywords = {Particle Physics},
            language = {en},
            title = { Structure formation in a dissipative dark sector},
            publisher = {Perimeter Institute},
            year = {2019},
            month = {may},
            note = {PIRSA:19050025 see, \url{https://pirsa.org}}
          }

Daniel Egana-Ugrinovic

Perimeter Institute for Theoretical Physics

Talk number
PIRSA:19050025
Collection
Talk Type
Subject
Abstract

We present the complete history of structure formation in a simple dissipative dark-sector model. The model has only two particles: a dark electron and a dark photon. Dark-electron perturbations grow from primordial overdensities, become non-linear, and form dense, dark galaxies. We show that asymmetric dark stars and black holes form within the Milky Way from the collapse of dark electrons. These exotic compact objects may be detected and their properties measured at new high-precision astronomical observatories, giving insight into the particle nature of the dark sector without the requirement of non-gravitational interactions with the visible sector.