GCN Circular 46144
Subject
EP261103a: BOOTES-6/DPRT early optical upper limits
Event
Date
2026-11-04T06:33:42Z (a day ago)
From
I. Perez-Garcia at Instituto de Astrofísica de Andalucía <ipg@iaa.es>
Via
Web form
I. Pérez-García, E. Fernández-García, M.D. Caballero-García, M. Gritsevich, S. Guziy, S.-Y. Wu, and A. J. Castro-Tirado (IAA-CSIC, Granada), P. J. Meintjes and H. J. van Heerden (UFS, South Africa), A. Martín-Carrillo and L. Hanlon (UCD, Ireland), Y.-D. Hu (GXU), D. R. Xiong (Yunnan Observatories of CAS) and C. J. Pérez del Pulgar (UMA, Malaga), on behalf of a larger collaboration, report:
Following the detection of EP261103a by EP (Ren et al., GCN 46142), the BOOTES-6/DPRT 0.6m robotic telescope at Boyden Observatory in Maselspoort (South Africa) automatically responded to this high-energy event starting on Nov 03, 20:24:58 UT (i.e. 396 sec after detection). Nothing is detected down to 15.0 mag in the first 10 s image at the position reported by Jiang et al. (GCN 46143). On a coadd image (7 x 60sec) at 20:40:23 UT (mid exposure time), nothing is detected down to 18.8 mag (clear filter) within the same region. Photometric calibration was performed against Gaia G-band magnitudes.
We thank the staff at Boyden Observatory for their excellent support.