Optical and radio astrometry of the galaxy associated with FRB 150418
Optical and radio astrometry of the galaxy associated with FRB 150418
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DOI：
10.1093/mnrasl/slw151
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发表时间：
2016-07
影响因子：
4.8
通讯作者：
C. Bassa;R. Beswick;S. Tingay;S. Tingay;E. Keane;S. Bhandari;S. Johnston;T. Totani;N. Tominaga;N. Tominaga;N. Yasuda;B. Stappers;E. Barr;M. Kramer;M. Kramer;A. Possenti
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文献类型：
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作者：
C. Bassa;R. Beswick;S. Tingay;S. Tingay;E. Keane;S. Bhandari;S. Johnston;T. Totani;N. Tominaga;N. Tominaga;N. Yasuda;B. Stappers;E. Barr;M. Kramer;M. Kramer;A. Possenti
一个衰落的射电源，在时间和位置上与快速射电暴FRB 150418一致，已经与星系WISE J071634.59-190039.2联系在一起。对这个星系的后续观测显示，它包含一个持续但可变的射电源。我们给出了WISE J071634.59-190039.2的e-MERLIN、VLBA和ATCA射电观测以及Subaru光学观测，发现持久射电源是不可分辨的，并且必须是紧凑的（<0.01 kpc），其位置与星系的光学中心一致。我们认为WISE J071634.59-190039.2可能包含一个弱射电活动星系核。
A fading radio source, coincident in time and position with the fast radio burst FRB150418, 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-MERLIN, VLBA, and ATCA 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 AGN.