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2022-05-27 Abstract

Title:  Fast Radio Bursts: the enigma and clues
 
Speaker:  Hsiu-Hsien Lin
 
Date: May 27 at 14:30
 
Location: R124, Physics Building
 
Abstract:

Fast Radio Bursts (FRBs) are bright (≳1Jy), ubiquitous, radio flashes with millisecond-duration from cosmological origin. About seven hundred FRBs have been published since the first discovery in 2007, of which two dozen sources have been observed with complex repetitions. About twenty FRBs have been localized to their host galaxies by interferometries, and only four of them have been pinpointed by the VLBI to local environments, including globular clusters and persistent radio sources. Hence, the nature of FRBs is still puzzling.

FRBs show very diverse properties in observations. To understand their local environment and cosmological distribution, using VLBI outrigger stations to localize non-repeating FRBs with a milli-arcsecond resolution has been proposed. In addition, next-generation telescopes with new beamforming techniques could monitor FRBs with all-sky field-of-view, which will detect a large sample of nearby FRBs. Combining the all-sky FRBs survey with VLBI outriggers, the large sample with milli-arcsecond localizations will answer several open questions of FRBs.  In this talk, I will review the progress of the FRB field in the past decade, discuss a few highlighted repeaters, the potential cosmological applications, and outline the future of the upcoming FRB era.
 

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