GCN Circular 26768
Subject
LIGO/Virgo S200114f: No counterpart in targeted WHT/ACAM imaging
Date
2020-01-15T11:23:31Z (5 years ago)
From
Morgan Fraser at University College Dublin <morgan.fraser@ucd.ie>
A. Inkenhaag (Radboud Univ.), M. Fraser (University College Dublin), P.
Jonker (SRON/Radboud Univ.)
R. Karjalainen (ING), A.J. Levan (Radboud Univ.), K. Maguire (Trinity
College Dublin), I. Pastor Marazuela (Univ. Amsterdam) report for a
larger collaboration:
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