[vsnet-grb-info 10508] GRB110414A: MITSuME Ishigakijima Optical upper limits

GCN Circulars gcncirc at capella2.gsfc.nasa.gov
Sat Apr 16 07:49:02 JST 2011


TITLE:   GCN CIRCULAR
NUMBER:  11940
SUBJECT: GRB110414A: MITSuME Ishigakijima Optical upper limits
DATE:    11/04/15 22:48:58 GMT
FROM:    Daisuke Kuroda at OAO/NAOJ  <dikuroda at oao.nao.ac.jp>

D. Kuroda (OAO, NAOJ),  H. Hanayama, T. Miyaji, J. Watanabe (IAO, NAOJ),
K. Yanagisawa (OAO, NAOJ), S.Nagayama (NAOJ), M. Yoshida (Hiroshima),
K. Ohta (Kyoto) and N. Kawai(Tokyo Tech)
report on behalf of the MITSuME collaboration:

We observed the field of GRB 110414A (Starling et al., GCN 11931)
with the optical three color (g', Rc and Ic) CCD camera attached
to the Murikabushi 1m telescope of Ishigakijima Astronomical
Observatory.

The observation started on 10:57:59 UT (~3.3 h after the burst).
We did not find any new point source within the Enhanced XRT circle
(Osborne et al., GCN 11934) in all the three bands.

Three sigma upper limits of the OT are listed below. We used
GSC2.3 catalog for flux calibration.


T0+[day]   MID-UT   T-EXP[sec]    g'     Rc     Ic
------------------------------------------------------
0.17783    11:58:19    6180.0    >19.7  >19.8  >19.1
------------------------------------------------------
T0+ : Elapsed time after the burst [day]
T-EXP: Total Exposure time [sec]


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