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 13077

Subject
GRB 120320A: Gemini-N and UKIRT observations
Date
2012-03-20T15:33:26Z (12 years ago)
From
Nial Tanvir at U.Leicester <nrt3@star.le.ac.uk>
A. J. Levan (U. Warwick), N. R. Tanvir (U. Leicester), T. Wold (JACH) and
R. Mason (Gemini) report on behalf of a larger collaboration:

We obtained observations of the field of GRB 120320A (Markwardt et al.
GCN13071) with both Gemini-N/GMOS in i and z, and UKIRT/WFCAM in J, H
and K. Our first observations began approximately 30 minutes after the burst,
and continued for a further 2 hours.

Within the refined X-ray error circle (Beardmore et al. GCN 13075) we detect a
very faint source in our GMOS imaging at position (accuracy ~0.5"):

RA(2000)=14:10:04.28
dec(2000)=08:41:47.9

The source has i~25.7+/-0.3 and z~25.3+/-0.3. It is undetected in the UKIRT
imaging to preliminary limits of J>21.6, H>20.0 and K>19.5.

This source could therefore be related to either the afterglow or the host galaxy of
GRB 120320A, but at the current time we cannot make any statements about fading.
Looking for U.S. government information and services? Visit USA.gov