{
  "bibcode": "2016GCN.19359....1M",
  "body": "A. Maselli (INAF-IASFPA), D. Malesani (DARK/NBI), K.L. Page and P.A. \nEvans (U. Leicester) report on behalf of the Swift-XRT team:\n\nSwift-XRT has conducted further observations of the field of the \nFermi-detected burst GRB 160422A (Yassine et al., GCN Circ. 19329; Burns \net al., GCN Circ. 19331), extending from T0+400 ks to T0+470 ks after \nthe Fermi/GBM trigger.\n\nAt the position of the candidate afterglow reported by Maselli et al. \n(GCN Circ. 19334) no source is detected in the new observation, with a \nthree sigma upper limit of 2.6e-3 ct/s. This confirms that it was the \nX-ray afterglow of GRB 160422A.\n\nThe results of the full analysis of the XRT observations are available \nat http://www.swift.ac.uk/xrt_products/00020605\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 19359,
  "createdOn": 1461850707000,
  "email": "maselli@ifc.inaf.it",
  "subject": "GRB 160422A: XRT Afterglow Confirmation",
  "submitter": "Alessandro Maselli at INAF/IASF Palermo  <maselli@ifc.inaf.it>",
  "eventId": "GRB 160422A"
}