TITLE:   GCN CIRCULAR
NUMBER:  25332
SUBJECT: LIGO/Virgo S190814bv: no candidates from WHT imaging of candidate galaxies
DATE:    19/08/15 09:58:43 GMT
FROM:    Andrew Levan at U.of Leicester  <a.levan@astro.ru.nl>

A.J. Levan (Radboud Univ), M. Fraser (UCD), P. Jonker (SRON/Radboud Univ), D. Steeghs (Warwick), D.B. Malesani (DTU Space), L. Salmon, K. Maguire (UCD),  D. Perley, C. Copperwheat (LJMU), P. D���Avanzo (INAF) report for a larger collaboration:

We observed 17 galaxies within the 90% error volume of S190814bv (LVC GCN 25324) with the William Herschel Telescope, in co-ordination with several other telescopes on La Palma (Heintz et al. GCN 25325, Perley et al. GCN 25328, D���Avanzo et al. GCN 25331). Observations were obtained on 15 August 2019 between 03:28 and 04:49 UT.  Galaxies were selected from the HOGWARTS code (https://gwtool.watchertelescope.ie/)). For each galaxy we obtained 3x60s r-band observations in good seeing. Comparison with archival Pan-STARRS imaging reveals no obvious counterparts in any cases to similar limiting magnitudes to the Pan-STARRS images, although we caution that fainter candidates close to their hosts could be omitted in such an inspection.

The locations of the galaxies observed are

RA(J2000) DEC (J2000)
0h49m01.48s   -23d48m40.7s
0h51m29.86s   -24d38m32.9s
0h54m49.13s   -26d22m16.5s
0h48m41.98s   -23d22m07.0s
0h54m37.67s   -25d04m01.5s
0h49m53.54s   -24d42m25.9s
0h51m10.52s   -25d57m15.0s
0h52m15.36s   -24d41m55.4s
0h50m39.87s   -26d48m48.2s
0h42m33.38s   -22d51m58.7s
0h53m04.27s   -26d10m14.8s
0h51m12.21s   -26d18m47.0s
0h57m01.11s   -23d50m14.2s
0h51m15.64s   -23d17m39.8s
0h43m33.26s   -23d57m10.4s
0h50m43.18s   -22d53m17.7s
0h44m48.49s   -22d06m59.5s

We thanks the staff of ING and in particular Ovidiu Vaduvescu for their help in acquiring these observations.