PIRSA:23030115

Mysteries of fast radio bursts

Li, D. (2023). Mysteries of fast radio bursts. Perimeter Institute. https://pirsa.org/23030115

Li, Dongzi. Mysteries of fast radio bursts. Perimeter Institute, Mar. 23, 2023, https://pirsa.org/23030115 

          @misc{ pirsa_PIRSA:23030115,
            doi = {10.48660/23030115},
            url = {https://pirsa.org/23030115},
            author = {Li, Dongzi},
            keywords = {Strong Gravity},
            language = {en},
            title = {Mysteries of fast radio bursts},
            publisher = {Perimeter Institute},
            year = {2023},
            month = {mar},
            note = {PIRSA:23030115 see, \url{https://pirsa.org}}
          }

Dongzi Li California Institute of Technology (Caltech)

DOI 10.48660/23030115
Collection
Talk Type Scientific Series
Subject

Abstract

Fast Radio Bursts (FRBs) are extremely energetic, millisecond-duration radio bursts coming outside our galaxy. The burst arrival time at different frequencies implies the number of electrons it has encountered in the foreground. Therefore, FRB is considered a promising new cosmology probe. The uncertainty of the circum-burst environment is one of the biggest concerns regarding its potential as a probe. In this talk, I will review the current understanding of the FRB progenitor and the recent study of the circum-burst environment. I will also discuss the many remaining mysteries, including the seemingly diverse nature of the sources, the magneto-environment, and the 16-day periodicity I found with one source. With the current and upcoming instruments, there will be more FRBs with orders of magnitude better spatial resolution detected in the next few years. The result will be an explosion of opportunity for understanding the burst origin and probing cosmic matter distribution at various spatial scales.

Zoom link: https://pitp.zoom.us/j/92030175800?pwd=dWlGVjV0Qnh5bGhLMk1pd01yRmNKQT09