The origin of Fast Radio Bursts, still an open question

Paper i proceeding, 2016

FRB 150418 is the first Fast Radio Burst (FRB) with a proposed counterpart. Keane et al. (2016) claimed that the galaxy WISE J0716-19 is the host of this event. Such association would provide extremely important clues about the possible extragalactic origin of the FRBs. It is still a mystery what kind of events produces the FRBs. We observed the proposed host galaxy with the European VLBI Network (EVN) during four epochs at 5 GHz, revealing a compact and persistent radio source located in the center of the galaxy. These data, together with contemporaneous observations, strongly support the presence of an active galactic nuclei (AGN) in the galaxy with variability on short timescales due to refractive scintillation. Therefore, WISE J0716-19 would not be related with FRB 150418.