GCN Circular 45541
Subject
EP260806a: NOEMA detection
Event
Date
2026-09-10T01:22:56Z (6 days ago)
From
Antonio de Ugarte Postigo at LAM, CNRS <adeugartepostigo@gmail.com>
Via
email
A. de Ugarte Postigo (LAM), M. Bremer (IRAM), C. C. Thoene (AbAO), S. Basa (LAM), S. Geier (GTC), L. Izzo (INAF/OACN and DARK/NBI), A. Martin-Carrillo (UCD), M. Michalowski (AOI-AMU), D. A. Perley (LJMU), D. B. Malesani (DAWN/NBI and Radboud), B. Schneider (LAM), N.R. Tanvir (U. Leicester) report:
We observed the field of EP260806a (Li et al. GCN 45299, Yang et al. GCN 45390) with the NOEMA interferometer, located at Plateau de Bure (France). Observations started on the 11th of August 2026 (4.9 days after the Einstein Probe detection) at 81, 96, 136 and 151 GHz. On a preliminary reduction, we detect the afterglow (He et al. GCN 45300, de Ugarte Postigo et al. GCN 45302, Eyles-Ferris GCN 45303, Ma et al. GCN 45305, Li et al. GCN 45305, de Ugarte Postigo et al. GCN 45306, Anumarlapudi et al. GCN45312, Abidkhanov et al. GCN 45354, Hua et al. GCN 45385, Maksut et al. GCN 45389, Pankov et al. GCN 45396) in all bands at a flux density of ~0.4 mJy.
We acknowledge excellent support from the IRAM staff. Based on observations carried out under project number S26DT with the IRAM NOEMA Interferometer. IRAM is supported by INSU/CNRS (France), MPG (Germany) and IGN (Spain).