[vsnet-grb-info 22644] GRB 190604B: Prompt enhanced Swift-XRT position
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Wed Jun 5 01:02:14 JST 2019
TITLE: GCN CIRCULAR
NUMBER: 24743
SUBJECT: GRB 190604B: Prompt enhanced Swift-XRT position
DATE: 19/06/04 16:01:14 GMT
FROM: Phil Evans at U of Leicester <pae9 at leicester.ac.uk>
P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:
Using promptly downlinked XRT event data for GRB 190604B, we find an
enhanced XRT position of the afterglow: RA, Dec: 297.5413, -32.9782
which is equivalent to:
RA (J2000) = 19 50 09.92
Dec (J2000) = -32 58 41.4
with an uncertainty of 2.0 arcseconds (radius, 90% confidence).
Analysis of the promptly available data is online at
http://www.swift.ac.uk/sper/906654.
Position enhancement is is described by Goad et al. (2007, A&A, 476,
1401) and Evans et al. (2009, MNRAS, 397, 1177).
This circular is an official product of the Swift-XRT team.
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