GCN Circular 21628
Subject
LIGO/Virgo G298048: ATCA 8.5 GHz observations of galaxies in the localisation volume
Date
2017-08-21T07:45:30Z (7 years ago)
From
Tara Murphy at U of Sydney <tara.murphy@sydney.edu.au>
C. Lynch (University of Sydney), T. Murphy (University of Sydney),
D. Kaplan (UWM), K. Bannister (CSIRO), D. Dobie (University of Sydney)
on behalf of the VAST collaboration.
We have observed 54 galaxies in the localisation volume of G298048 as
listed by
Cook et al. (LVC GCN 21519) with the Australia Telescope Compact Array at
8.5 GHz (Bannister et al. LVC GCN 21537). The observations were taken in the
EW352 configuration, with approximately 1-2 minutes on each source between
2017-08-18 01:00 UT and 2017-08-18 09:14:15 UT.
We detected 8.5 GHz radio emission from 5 galaxies, as listed below:
Galaxy 3-sigma flux density
UGCA 331 0.33 mJy
NGC 4993 0.66 mJy
NGC 4968 16.1 mJy
IC 4197 2.7 mJy
ESO 508- G 033 3.7 mJy
The rest of the sources in the list were non-detections. We list 3-sigma
upper limits on the 8.5 GHz radio emission below:
Galaxy 3-sigma flux
density limit
IC 3825 102.8 uJy
ABELL 1631:[CZ2003]B0295[024] 47.1 uJy
GALEXASC J125157.02-160617.8 43.7 uJy
MCG -02-33-036 24.9 uJy
2MASX J12525109-1529300 33.2 uJy
GALEXASC J125301.39-151007.7 36.9 uJy
WINGS J125412.84-153523.6 25.9 uJy
6dF J1254495-160308 36.2 uJy
GALEXASC J125520.46-170546.9 33.6 uJy
HIPASS J1255-15 36.5 uJy
ESO 575- G 029 46.8 uJy
MCG -03-33-023 198.8 uJy
WINGS J125701.38-172325.2 213.4 uJy
NGC 4830 60.0 uJy
GALEXASC J125811.97-210246.3 22.6 uJy
GALEXASC J130415.26-225251.3 21.2 uJy
ESO 575- G 053 50.4 uJy
6dF J1305235-233121 18.2 uJy
GALEXASC J130525.30-233008.8 12.8 uJy
2MASX J13061939-2258491 77.5 uJy
ESO 508- G 003 60.3 uJy
ESO 575- G 055 85.7 uJy
ESO 508- G 004 66.2 uJy
UGCA 325 35.0 uJy
GALEXASC J130707.37-240634.4 35.0 uJy
NGC 4970 48.5 uJy
ABELL 1664_11:[PSE2006] 2506 54.7 uJy
ESO 508- G 010 39.2 uJy
UGCA 327 39.8 uJy
USGC S204 44.5 uJy
HDCE 0763 39.2 uJy
ESO 508 62.8 uJy
ESO 508- G 014 56.0 uJy
2MFGC 10461 44.3 uJy
6dF J1309177-242256 24.6 uJy
GALEXASC J130918.58-242304.8 25.6 uJy
UGCA 328 23.1 uJy
ESO 576- G 003 49.4 uJy
[TSK2008] 0073 32.2 uJy
GALEXASC J131426.62-271242.6 53.4 uJy
[TSK2008] 0052 56.6 uJy
ESO 508- G 035 70.5 uJy
We have not yet been able to make reliable measurements for the following 7
sources, so they are excluded from the above lists:
2MASX J12505229-1454238
2MASX J12573271-1942006
2MASX J13073768-2356181
GALEXASC J125259.36-152150.9
IC 4180
2MFGC 10484
ESO 508- G 019
We did not observe GALEXASC J120652.88-040236.6.
Further observations are underway. Thank you to CSIRO staff for supporting
these observations.