MG15 - Talk detail

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Abstract

Recent development of sensitive, high time resolution instruments has enabled the discovery of the millisecond duration fast radio bursts (FRBs). The FRB class encompasses a number of coherent radio pulses, each unique in their own way, with dispersion measures suggestive of origin at cosmological distances. If the progenitors of FRBs are indeed cosmological in nature, their possible role in exploring extragalactic magnetic fields is important as the magnetic field distribution beyond the scale of galaxies and clusters of galaxies is still to a large extent, unknown. In my talk, I will present the polarization properties of two FRBs: 151230 and 160102 discovered in the SUrvey for Pulsars and Extragalactic Radio Bursts (SUPERB) at the Parkes Radio Telescope. I will examine possible progenitor models in extragalactic, non-cosmological and cosmological scenarios and assess the relative likeliness of these scenarios and how each can be tested.I will also discuss the constraints on the scattering measure, the impact of scattering on the signal's polarization position angle and how a large sample of FRBs is vital in the quest to understand this enigmatic population.

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