TITLE:   GCN CIRCULAR
NUMBER:  12168
SUBJECT: GRB 110715A: APEX detection of the submm counterpart
DATE:    11/07/17 02:08:00 GMT
FROM:    Antonio Deugarte at IAA-CSIC  <deugarte@iaa.es>

A. de Ugarte Postigo (DARK/NBI), A. Lundgren, F. Mac-Auliffe,
F.M. Montenegro, D.A. García-Appadoo, I. de Gregorio-Monsalvo,
S. Martin, C. De Breuk (ESO), P. Bergman, M. Hajigholi (OSO),
C.C. Thoene, J. Gorosabel, A.J. Castro-Tirado (IAA-CSIC),
J.P.U. Fynbo (DARK/NBI) and S. Covino (INAF-OAB) report on
behalf of a larger collaboration:

We have observed the field of GRB 110715A (Sonbas et al. GCN 12158)
using LABOCA/APEX at Chajnantor (Chile) in the 870 micrometer band.
The weather conditions were good, with a precipitable water vapor
of 0.62mm. Observations began on July 16 at 23:21 UT (1.42 days after
the burst) and were performed using the photometric mode, centred at
the position of the optical counterpart (Kuin et al. GCN 12162,
Piranomonte et al. GCN 12164).

On a preliminary analysis of 88 minutes on source we detect a flux at
the position of the afterglow of 11.0+/-2.3 mJy.

Further observations are foreseen. We encourage follow-up in other
wavelengths.