GCN Circular 43364

Subject

EP260110a: BOOTES-5/JGU optical upper limit

Event

EP260110a

Date

2026-01-10T13:26:38Z (3 days ago)

From

I. Perez-Garcia at Institute of Astrophysics of Andalusia <ipg@iaa.es>

Via

Web form

I. Perez-Garcia, E. J. Fernandez-Garcia, M. D. Caballero-Garcia, S.-Y. Wu, R. Sanchez-Ramirez, S. Guziy and A. J. Castro-Tirado (IAA-CSIC, Granada), I. M. Carrasco (SMA), M. Gritsevich (Univ. of Helsinki), C. Perez del Pulgar (Univ. of Malaga), Y.-D. Hu (GXU), S. Jeong (ADD, Daejeon), G. Garcia-Segura and D. Hiriart (IA-UNAM, Ensenada), D. R. Xiong (Yunnan Observatories of CAS, Kunming), and W. H. Lee (UNAM, Mexico DF), on behalf of a larger collaboration, report:

Following the detection of EP260110a by EP (Zhang et al., GCN 43363Loading...
 
 ), the 0.6m BOOTES-5/JGU robotic telescope at San Pedro Martir Observatory (Mexico) automatically responded to this high-energy event starting on Jan 10, 12:18:31 UT (i.e. 20 min after detection). Nothing is detected down to 17.3 in this first image. On a coadd image (12 x 60sec) at 12:41:13 UT (mid exposure time), nothing is detected down to 20.1 mag (clear filter) within the FXT error region. All photometric calibration was done using Gaia Gmag band.

We would like to thank the staff at San Pedro Martir Observatory for their excellent support.