[vsnet-grb-info 20202] GRB 180102A: NOT optical observations
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Wed Jan 3 17:21:10 JST 2018
TITLE: GCN CIRCULAR
NUMBER: 22298
SUBJECT: GRB 180102A: NOT optical observations
DATE: 18/01/03 08:20:40 GMT
FROM: Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst <malesani at dark-cosmology.dk>
D. Malesani (DARK/NBI), K. E. Heintz (Univ. Iceland and DARK/NBI), A.
Sagues Carracedo (NOT), Andreas Kjaer Dideriksen (Aarhus Univ.), report
on behalf of a larger collaboration:
We observed the field of GRB 180102A (Page et al., GCN 22292; Veres, GCN
22295) with the Nordic Optical Telescope (NOT) equipped with the AlFOSC
camera. Observations were carried out in the SDSS r and z filters (900
and 1000 s exposure, respectively), with a seeing of 1.5", and started
on 2018 Jan 3.1769 UT (12.42 hr after the GRB trigger).
At the position of the X-ray counterpart (D'Ai et al., GCN 22296), no
objects are detected down to (preliminary) limiting magnitudes r = 22.5,
z = 22.0 (all AB, calibrated with reference to nearby Pan-STARRS stars).
More information about the vsnet-grb-info
mailing list