[vsnet-grb-info 18633] GRB161017A: NOEMA detection of the millimetre afterglow

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  20081
SUBJECT: GRB161017A: NOEMA detection of the millimetre afterglow
DATE:    16/10/19 16:15:03 GMT
FROM:    Steve Schulze at U of Iceland  <sts30 at hi.is>

S. Schulze (Weizmann Institute), A. de Ugarte Postigo (IAA-CSIC, DARK/NBI), M. Bremer, E. Chapillon, J. M. Winters (IRAM) and S. Martin (JAO) report on behalf a larger collaboration:

We conducted millimetre observations of GRB 161017A (Troja et al. GCN 20064) with the NOrthern Extended Millimeter Array (NOEMA; Plateau de Bure, France) at 93 and 133 GHz. Observations started at 6:51 UT on October 19 (i.e. 1.54 day after the burst).

We detect the afterglow at both frequencies. A preliminary analysis of the 93 GHz data reveals a flux density of 1.50 +/- 0.06 mJy. Further observations are scheduled.

We encourage follow-up observations at all frequencies.