PIRSA:16110038

Video URL

https://pirsa.org/16110038

Probing fundamental physics with galaxies

Dalal, N. (2016). Probing fundamental physics with galaxies. Perimeter Institute for Theoretical Physics. https://pirsa.org/16110038

Dalal, Neal. Probing fundamental physics with galaxies. Perimeter Institute for Theoretical Physics, Nov. 30, 2016, https://pirsa.org/16110038 

          @misc{ scivideos_PIRSA:16110038,
            doi = {10.48660/16110038},
            url = {https://pirsa.org/16110038},
            author = {Dalal, Neal},
            keywords = {Other Physics},
            language = {en},
            title = {Probing fundamental physics with galaxies},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2016},
            month = {nov},
            note = {PIRSA:16110038 see, \url{https://scivideos.org/index.php/pirsa/16110038}}
          }

Neal Dalal Perimeter Institute for Theoretical Physics

Talk numberPIRSA:16110038
DOI10.48660/16110038
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

In recent years, precise cosmological measurements have provided strong evidence for new physics beyond the Standard Model, occurring both in the very early universe and also today.  In the near future, large-scale galaxy surveys will open another window on many different areas of physics, including tests of gravity, probes of dark energy, and cosmic inflation.  However, interpreting galaxy surveys presents new challenges, because galaxies are sensitive to astrophysics that are unimportant for the cosmic microwave background.  I will discuss how galaxies may be used to study cosmology, and will argue that the messy astrophysics in galaxies actually offers entirely new probes of fundamental physics.  I will illustrate this with 3 examples, related to inflation, neutrino masses, and the properties of dark matter.