PIRSA:25080005

Video URL

https://pirsa.org/25080005

Probing cosmic plasmas at sub-au scales with fast radio bursts

Koch Ocker, S. (2025). Probing cosmic plasmas at sub-au scales with fast radio bursts. Perimeter Institute for Theoretical Physics. https://pirsa.org/25080005

Koch Ocker, Stella. Probing cosmic plasmas at sub-au scales with fast radio bursts. Perimeter Institute for Theoretical Physics, Aug. 01, 2025, https://pirsa.org/25080005 

          @misc{ scivideos_PIRSA:25080005,
            doi = {10.48660/25080005},
            url = {https://pirsa.org/25080005},
            author = {Koch Ocker, Stella},
            keywords = {Cosmology},
            language = {en},
            title = {Probing cosmic plasmas at sub-au scales with fast radio bursts},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2025},
            month = {aug},
            note = {PIRSA:25080005 see, \url{https://scivideos.org/index.php/pirsa/25080005}}
          }

Stella Koch Ocker California Institute of Technology

Talk numberPIRSA:25080005
DOI10.48660/25080005
Source RepositoryPIRSA
Collection
Talk Type Conference
Subject

Abstract

Fast radio bursts (FRBs) are dispersed and scattered by plasma density fluctuations along the line-of-sight, making them sensitive probes of diffuse ionized gas across interstellar, circumgalactic, and intergalactic media. In this talk I will discuss how FRB propagation effects are unveiling cosmic plasmas at extremely small (sub-au) spatial scales in both interstellar and circumgalactic media, and how they may be used in tandem with quasars to constrain the turbulent dynamics of ionized gas in these environments.