LIGO/Virgo G297595: Gemini and VLT observations by GLGW Hunters
Abstract
The Gravitationally-lensed Gravitational Wave Hunters collaboration report observations of strong-lensing galaxy clusters located within the sky localisation of the LIGO/Virgo trigger G297595 (LVC GCN Circ. 21474). Following Smith et al. (arXiv:1707.03412) we searched the initial (August 14th) and updated (August 16th) skymaps for strong-lensing galaxy clusters that lie within the 90% credible sky localisation. Abell 3084 was the closest strong-lensing galaxy cluster to the peak probability in the initial skymap. We observed this cluster through the i-band filter with GMOS on Gemini-South on the nights of August 14, 16, 17, 20, 21, and with MUSE on VLT on the nights of August 16, and 18. GMOS spans a 5.5x5.5 arcminute field of view, and MUSE spans a 1x1 arcminute field of view with a wavelength range of 4650-9300 Angstroms. SMACSJ0304.3-4401 was the closest strong-lensing galaxy cluster to the peak probability in the updated skymap. We observed this cluster through the i-band filter with GMOS on Gemini-South on the nights of August 17 and 20. Analysis of these data is ongoing. Colleagues with complementary data are welcome to contact us with a view to collaboration. We thank the staff at ESO and Gemini for their outstanding support of our observing programmes.
- Publication:
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GRB Coordinates Network
- Pub Date:
- August 2017
- Bibcode:
- 2017GCN.21692....1S