Optical and radio astrometry of the galaxy associated with FRB 150418

A fading radio source, coincident in time and position with the fast radio burst FRB 150418, has been associated with the galaxy WISE J071634.59-190039.2. Subsequent observations of this galaxy have revealed that it contains a persistent, but variable, radio source. We present e-Multi-Element Radio...

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Bibliographic Details
Main Authors: Bassa, C., Beswick, R., Tingay, Steven, Keane, E., Bhandari, S., Johnston, S., Totani, T., Tominaga, N., Yasuda, N., Stappers, B., Barr, E., Kramer, M., Possenti, A.
Format: Journal Article
Published: Oxford 2016
Online Access:http://hdl.handle.net/20.500.11937/21719
Description
Summary:A fading radio source, coincident in time and position with the fast radio burst FRB 150418, has been associated with the galaxy WISE J071634.59-190039.2. Subsequent observations of this galaxy have revealed that it contains a persistent, but variable, radio source. We present e-Multi-Element Radio Linked Interferometer Network, Very Long Baseline Array, and Australia Telescope Compact Array radio observations and Subaru optical observations of WISE J071634.59-190039.2 and find that the persistent radio source is unresolved and must be compact (<0.01 kpc), and that its location is consistent with the optical centre of the galaxy. We conclude that it is likely that WISE J071634.59-190039.2 contains a weak radio active galactic nucleus.