PIRSA:24020059

Formation of Dark Compact Objects in an Early Matter Dominated Era

Diamond, M. (2024). Formation of Dark Compact Objects in an Early Matter Dominated Era. Perimeter Institute. https://pirsa.org/24020059

Diamond, Melissa. Formation of Dark Compact Objects in an Early Matter Dominated Era. Perimeter Institute, Feb. 26, 2024, https://pirsa.org/24020059 

          @misc{ pirsa_PIRSA:24020059,
            doi = {10.48660/24020059},
            url = {https://pirsa.org/24020059},
            author = {Diamond, Melissa},
            keywords = {Cosmology},
            language = {en},
            title = {Formation of Dark Compact Objects in an Early Matter Dominated Era},
            publisher = {Perimeter Institute},
            year = {2024},
            month = {feb},
            note = {PIRSA:24020059 see, \url{https://pirsa.org}}
          }

Melissa Diamond Queen's University

DOI 10.48660/24020059
Collection
Talk Type Conference
Subject

Abstract

Self interacting dark matter can form halos and compact objects in an early matter dominated era before Big Bang Nucleosynthesis. This talk explores how an asymmetric dark fermion which self interacts via a heavy vector can undergo halo formation in an early matter dominated era. These halos then cool via bremsstrahlung until they either collapse into black holes or fragment into compact pressure support objects. Radiation domination is restored via a phase transition. This provides a simple new mechanism to produce both primordial black holes and dark compact objects.