Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 12365

Subject
GRB 110918A: INT optical detection of Swift candidate afterglow
Date
2011-09-20T13:53:36Z (13 years ago)
From
Nial Tanvir at U.Leicester <nrt3@star.le.ac.uk>
N.R. Tanvir, K. Wiersema (U. Leicester), A.J. Levan, S. Greiss,��
B. Gaensicke (U. Warwick) report on behalf of a larger collaboration:��


We observed the field of IPN burst GRB 110918A (Hurley et al. GCN
12357) with the Isaac Newton Telescope on La Palma, using the Wide
Field Camera starting at 20-Sep-2011 02:22 UT, roughly 29 hours
post-burst. ��Close to the location of the X-ray source reported by Mangano
et al. (GCN 12364) we detect a bright optical point-source which is not
visible in the DSS2 images of the region.


Very provisional calibration gives a magnitude R~19.0-19.5 (well above the
DSS2 limit) and a position:��


RA(2000)=02 10 09.39��
dec(2000)=-27 06 19.6��


accurate to ~0.5" in each coordinate. ��We cannot yet assess variability.
Looking for U.S. government information and services? Visit USA.gov