PIRSA:20120028

Cosmological tensions and how to ease them

APA

Schöneberg, N. (2020). Cosmological tensions and how to ease them. Perimeter Institute. https://pirsa.org/20120028

MLA

Schöneberg, Nils. Cosmological tensions and how to ease them. Perimeter Institute, Dec. 15, 2020, https://pirsa.org/20120028

BibTex

          @misc{ pirsa_20120028,
            doi = {},
            url = {https://pirsa.org/20120028},
            author = {Sch{\"o}neberg, Nils},
            keywords = {Cosmology},
            language = {en},
            title = {Cosmological tensions and how to ease them},
            publisher = {Perimeter Institute},
            year = {2020},
            month = {dec},
            note = {PIRSA:20120028 see, \url{https://pirsa.org}}
          }
          

Abstract

Tensions between measurements in the early and the late universe could be the first hint of new physics beyond the cosmological standard model. In particular, the clustering of large scale structure and the current value of the Hubble parameter show intriguing discrepancies between measurements in the early and late universe. In this talk, I review the most common ways of easing these two tensions and focus specifically on parameter extensions and various models of dark matter, such as warm dark matter, cannibalistic dark matter, dark matter interactions, and dark radiation. To constrain these models a variety of cosmological probes, both current and future, is required at different scales and redshifts.