Colloq Abstract - Cordes

May 10, 2019

11:00am Mountain

Jim Cordes (Cornell)

 

The Enigmas of Fast Radio Bursts

 

Abstract

 

Fast radio bursts of extragalactic origin show unprecedented energies compared to Galactic pulsars and they show unique spectro-temporal signatures. In one case a very large Faraday rotation measure is seen to evolve rapidly. To date most FRBs have not repeated and none of the repeating FRBs appears to be periodic.  I will discuss possible explanations for these phenomena along with other topics that include the role of radio propagation effects in FRB  surveys and follow up observations and  using such effects to probe host galaxies and circumsource environments. A source model involving very young magnetars will be assessed as will the prospects for using FRBs to probe the intergalactic medium.



 

 

 

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