GCN Circular 21576
Subject
LIGO/Virgo G298048: prior photometry from VISTA Hemisphere Survey
Date
2017-08-18T21:16:32Z (7 years ago)
From
Nial Tanvir at U of Leicester <nrt3@le.ac.uk>
N. R. Tanvir (U. Leicester), A. J. Levan, D. Steeghs (U. Warwick) report:
We note that the field of NGC 4993 was observed as part
of the VISTA Hemisphere Survey on 9 April 2014. No source
is visible at the location of the candidate counterpart
(Coulter et al. LVC GCN 21529). We obtain a 3-sigma upper
limit of J(AB)=21.6, significantly fainter than the provisional magnitude
of J(AB)=17.5+/-0.1 reported for the infrared transient
(Tanvir et al. LVC GCN 21544).