[vsnet-grb-info 4525] GRB070412: UKIRT-WFCAM JHK upper limits
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Fri Apr 13 06:46:55 JST 2007
TITLE: GCN CIRCULAR
NUMBER: 6294
SUBJECT: GRB070412: UKIRT-WFCAM JHK upper limits
DATE: 07/04/12 21:46:49 GMT
FROM: Evert Rol at U.Leicester <er45 at star.le.ac.uk>
E. Rol, N. Tanvir (U. of Leicester), A. Levan (U. of Warwick), L. Fuhrman
(JAC), report for a larger collaboration:
We observed the field of GRB070412 between 4.3 and 5.4 hours after the GRB
trigger (Romano et al., GCNC 6273). At the position of the X-ray
afterglow (Romano et al., GCNC 6282), we detect no source. We place the
following 5-sigma limiting magnitudes at this position:
J 20.7
H 20.1
K 19.8
The magnitudes are calibrated with respect to the 2MASS catalogue.
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