[vsnet-grb-info 7651] GRB 090423: UKIRT data further analysis

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  9206
SUBJECT: GRB 090423: UKIRT data further analysis
DATE:    09/04/23 13:05:45 GMT
FROM:    Nial Tanvir at IofA U.Cambridge  <nrt at ast.cam.ac.uk>

A. Levan (U. Warwick), N. Tanvir (U. Leicester),
K. Wiersema (U. Leicester)

Further analysis of the data reported in GCN 9202 reveals that the
source did not fade appreciably (i.e. by more than ~0.15 mag) between
observations with mid-times 25 and 41 minutes post-burst.  However, we
do believe that the extension of the image is consistent with it
being a point source.

We note that the revised XRT error circle (GCN 9205) now contains this
source, making it likely the counterpart or host of this GRB.