[vsnet-grb-info 18533] GRB 161004A: Bassano Bresciano Observatory upper limit
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Wed Oct 5 04:18:52 JST 2016
TITLE: GCN CIRCULAR
NUMBER: 19981
SUBJECT: GRB 161004A: Bassano Bresciano Observatory upper limit
DATE: 16/10/04 19:14:38 GMT
FROM: Ulisse Quadri at Bassano Bresciano Obs <oabb at ulisse.bs.it>
U.Quadri, L.Strabla and R.Girelli report:
We imaged the field of GRB 161004A detected by SWIFT(trigger 715084)
with the robotic telescope of (IAU station 565) Bassano Bresciano
Observatory, Italy. Member of:
AAVSO - American Association of Variable Star Observers.
ISSP - Italian Supernovae Search Project.
UAI/SSV - Unione Astrofili Italiani/sezione stelle variabili.
The observations started 4.90 hour after the GRB trigger, at the end of twilight,
with our Newton telescope D=250 mm F/D=4.8.
Weather conditions were good.
We co-added 3 series of 10 exposures of 60 sec each.
Start T0+ End T0+ Vlim
4.9 hour 5.5 hour 18
We did not found any optical counterpart in the error box of the XRTcandidate.
P.A. Evans (U Leicester), S. D. Barthelmy (GSFC), et al.
Magnitudes were estimated with the UCAC4 cat. and
are not corrected for galactic dust extinction.
Reference:
http://www.osservatoriobassano.org/GRB.asp
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