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19-11-2020
Colloquium (19 November 2020): Evan Keane (SKA Organisation)
| Submitter: | Evan Keane |
| Description: | Title: Cosmology with Fast Radio Bursts Image details: The Macquart Relation describes how the observed properties of Fast Radio Bursts (dispersion measure, redshift) are related to the history of the Universe. By collecting a large sample of FRBs one can use them to understand this history and to 'zoom in' on key epochs during the evolution of the Universe. Abstract: Fast Radio Bursts are a booming industry. So fashionable is the study of FRBs that new telescopes have been built, and existing telescopes refurbished, specifically to find them. All of this activity has increased their discovery rate from ~1/year to ~1/day. As the field enters its teenage years, astronomers are sure that they exist. The sample is becoming sufficient to address important questions such as (a) what are their progenitors? and (b) what are they good for? In this talk I will consider both of these questions, paying particular attention to the latter. The field of FRB cosmology is just emerging and I will describe some of the scientific potential and the various pitfalls that may arise. Further, I will describe some of the 'foreground' studies that must also be undertaken if it is to reach levels of precision and impact comparable to the likes of WMAP and Planck. |
| Copyright: | Evan Keane |
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