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GCN Circular 21544

Subject
LIGO/Virgo G298048: VISTA/VIRCAM detection of candidate counterpart
Date
2017-08-18T05:03:48Z (7 years ago)
From
Nial Tanvir at U of Leicester <nrt3@le.ac.uk>
N. R. Tanvir (U. Leicester), A. J. Levan (U. Warwick) report on behalf of the VINROUGE collaboration.

We observed the region around the location of the proposed optical 
counterpart of LIGO/Virgo G298048 (Coulter et al. LVC GCN 21529) using 
the VIRCAM camera on the wide-field ESO VISTA telescope.  
The source is clearly detected with a provisional magnitude 
J(AB)=17.5+/-0.1 at Aug-18 00:10 UT.  We note that this is consistent with 
colours that are flat in Fnu, as noted by Nicholl et al. (LVC GCN 21541)
from DECam data taken at a similar epoch.
Further analysis is ongoing.

We thank the staff at Paranal for their excellent support of these
observations.
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