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Optical and radio astrometry of the galaxy associated with FRB 150418

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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.
Date
2016
Type
Journal Article

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Bassa, C. and Beswick, R. and Tingay, S. and Keane, E. and Bhandari, S. and Johnston, S. and Totani, T. et al. 2016. Optical and radio astrometry of the galaxy associated with FRB 150418. Monthly Notices of the Royal Astronomical Society: Letters. 463 (1): pp. L36-L40.
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Monthly Notices of the Royal Astronomical Society: Letters
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Curtin Institute of Radio Astronomy (Physics)
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This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

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Abstract

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.