LIGO/Virgo S200114f: No counterpart in targeted WHT/ACAM imaging
Abstract
We obtained deep imaging of a number of nearby galaxies within the sky localisation of the unmodeled gravitational wave burst S200114f (GCN 26734). Galaxies were selected from the list provided by the HOGWARTS code (Salmon et al. arXiv:1912.07304); as no distance information is available from the GW waveform we targeted galaxies that were closer than 30 Mpc. Deep (6x100s) r-band imaging was taken with the William Herschel Telescope + ACAM on 2020 Jan 15.1 UT. Visual comparison to PanSTARRS reference images reveals no obvious transients, however as the WHT images are deeper than those from PanSTARRS we are limited to the depth of the latter. We will obtain a further epoch of deep ACAM imaging over the coming nights that will allow us to perform difference imaging against these observations. We thank the Isaac Newton Group staff and director for facilitating these observations. The list of targeted galaxies follows UGC03755 07:13:51.600 +10:31:14.16 NGC2350 07:13:12.192 +12:15:57.60 UGC03658 07:04:40.080 +17:34:57.36 UGC03587 06:53:54.960 +19:17:58.56 UGC03876 07:29:17.520 +27:53:52.80 UGC03602 06:55:26.880 +15:56:03.84 PGC020981 07:25:38.880 +09:10:59.70 UGC03974 07:41:55.200 +16:48:11.16 PGC2807004 07:30:59.280 +08:00:01.80 PGC020554 07:16:36.120 +29:36:38.16 UGC03516 06:43:08.400 +22:52:27.12 PGC021614 07:42:31.920 +16:33:41.40 UGC03672 07:06:27.600 +30:19:19.20
- Publication:
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GRB Coordinates Network
- Pub Date:
- January 2020
- Bibcode:
- 2020GCN.26768....1I