{
  "bibcode": "2015GCN.17747....1W",
  "body": "K. Wiersema (Leicester), A. Levan (Warwick), N. Tanvir (Leicester), C. MacLeod\n(IfA Edinburgh), F. Riddick (ING) report:\n\nWe observed the position of GRB 150423A (Pagani et al. GCN 17728) using the\nACAM instrument on the William Herschel Telescope, at La Palma. We obtained\nimages with 5 x 300 sec exposure time in both sloan g and z bands, starting at \n22:30 UT on 23 April 2015. The nearby galaxy (Varela et al. GCN 17732; Perley et\nal. GCN 17744) is clearly detected, but the afterglow (Varela et al. GCN 17732)\nis not significantly detected, with a 5 sigma limit of g~25.3 (calibrated using\nSDSS field objects). A low significance object may be present near the afterglow\nposition in g band, as well as some faint galaxies, which may be candidate hosts.\nSee here for an image of the field:\nhttp://www2.le.ac.uk/departments/physics/people/klaaswiersema/wht-observations-of-grb-150423a/view",
  "circularId": 17747,
  "createdOn": 1429875337000,
  "email": "kw113@leicester.ac.uk",
  "subject": "GRB 150423A: WHT observations",
  "submitter": "Klaas Wiersema at U Leicester  <kw113@leicester.ac.uk>",
  "eventId": "GRB 150423A"
}