Shea Brown (CSIRO - ATNF)

Probing Large-Scale Structure with Radio Observations - Shea Brown Colloquium

ATNF Marsfield Lecture Theatre

Abstract

Observations of diffuse synchrotron emission in large-scale structure has the potential to address key issues such as the cosmological origin of magnetic fields, the physics of cosmic-ray acceleration, and the detection and characterization of the elusive warm-hot intergalactic medium (WHIM). I will present current efforts to detect synchrotron signatures of large-scale structure formation, emphasizing the principal observational obstacles and limitations. I will then outline the major advances that will be possible with the next generation of radio telescope arrays.