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GCN Circular 20425

LIGO/Virgo G268556: AMI 15 GHz detection of ATLAS17aeu
2017-01-11T12:58:07Z (7 years ago)
Kunal Mooley at U of Oxford <>
K. P. Mooley, R. P. Fender (Oxford), A. Horesh (HUJI) report on behalf 
of a larger collaboration

We observed the optical transient ATLAS17aeu (Tonry et al., LVC GCN 
20382) located in the error region of LIGO/Virgo G268556 (LVC GCN 20364) 
with the AMI Large Array on 2017 Jan 07.04 UT. At 15.5 GHz, the flux 
density of the source is 336+/-20 uJy. We are currently monitoring this 

We thank the AMI staff for scheduling this observation. Since this 
source is likely the afterglow of GRB 170105A (e.g. Kasliwal et al., LVC 
GCN 20393; Chambers et al., LVC GCN 20407), we will be updating the 
AMI-GRB database ( with the measurements.
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