GCN Circular 21459
Subject
LIGO/Virgo G296853: BOOTES-1 and GTC optical observations
Date
2017-08-11T17:02:15Z (8 years ago)
From
Alberto J. Castro-Tirado at IAA-CSIC <ajct@iaa.es>
A. J. Castro-Tirado (IAA-CSIC and ISA-UMA), C. P��rez del Pulgar and R.
Mart��n M��rquez (ISA-UMA), A. Castell��n (UMA), M. Jel��nek (ASU-CAS), R.
Cunniffe, Y. Hu and A. Gonz��lez-Rodr��guez (IAA-CSIC), P. Peseev, G.
G��mez and A. Alonso (GRANTECAN), on behalf of a larger collaboration
report:
In response to the LIGO/Virgo GW Binary Merger Candidate G296853 on Aug
9, 08:28 UT (GCNC 21431), a mosaic of unfiltered images covering 80% of
the GraceDB skymap (above -45 in Dec) was taken starting on Aug 10,
01:30 UT (i.e. 17 hr later) with the wide-field imager at the BOOTES-1
station located at the ESAt/INTA-CEDEA in Mazag��n (Huelva, Spain), down
to a R = 12 limiting magnitude. In addition to this, data for several
selected fields within the skymap center were gathered the same night
with the 10.4m GTC telescope (+OSIRIS spectrograph) in riz filters down
to R = 21.5, with the images quality being affected by the nearby full
moon and the poor transparency due to the dust from Sahara. A more
detailed analysis of the data is in progress.