[vsnet-grb-info 26988] GRB 201214A: 1.3m DFOT, optical upper limits
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Sun Dec 20 03:15:24 JST 2020
TITLE: GCN CIRCULAR
NUMBER: 29091
SUBJECT: GRB 201214A: 1.3m DFOT, optical upper limits
DATE: 20/12/19 18:14:24 GMT
FROM: Amit Kumar at ARIES, India <amitkundu515 at gmail.com>
Amit Kumar (ARIES), Rahul Gupta (ARIES), Neelam Panwar (ARIES), Dimple
(ARIES), Ankur Ghosh (ARIES), Avinash Singh (ARIES), Amar Aryan (ARIES),
Shashi B. Pandey (ARIES), and Kuntal Misra (ARIES) report:
We observed the field of INTEGRAL-detected burst GRB 201214A (Mereghetti et
al. GCN Circ. 29037; Evans et al., GCN 29036) with the 1.3m Devasthal Fast
Optical Telescope (DFOT) located at Devasthal observatory of Aryabhatta
Research Institute of Observational Sciences (ARIES), India. We observed a
series of images ~16.6 hours after the burst in both R and I (300sx3 in
each) filters (Johnson-Cousins) covering Swift XRT position (Kennea et al.,
GCN 29048). Preliminary photometry on the stacked images was performed and
calibrated against the USNO-B1 catalog stars. We do not detect any OT
candidate within the XRT position (see also Jelinek & Strobl GCN 29040).
The upper limits in the stacked images are the following:
DATE UT (start) Filter Exposure(sec) Frames Upper limit (mag)
2020-12-14 22:51:42 R 300 3 21.5
2020-12-14 23:27:40 I 300 3 21.0
This circular may be cited.
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