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GCN Circular 40569

Subject

EP-WXT trigger 01709177124: confirmation of a stellar flare by BOOTES-6

Date

2025-05-29T04:32:53Z (5 days ago)

Edited On

2025-05-29T13:30:18Z (5 days ago)

From

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

Edited By

Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov>

Via

Web form

I. Perez-Garcia, S.-Y. Wu, E. Fernandez-Garcia, M.D. Caballero-Garcia, R. Sanchez-Ramirez, S. Guziy, G. Garcia-Segura and A. J. Castro-Tirado (IAA-CSIC, Granada), P. J. Meintjes and H. J. van Heerden (UFS, South Africa), A. Martin-Carrillo and L. Hanlon (UCD, Ireland), M. Gritsevich (Univ. of Helsinki) and C. J. Perez del Pulgar (UMA, Malaga), on behalf of a larger collaboration, report:

Following the detection of trigger 01709177124 by EP-WXT (Hu et al. GCNC 40568), the BOOTES-6/DPRT 0.6m robotic telescope at Boyden Observatory in Maselspoort (South Africa) responded to the alert on May. 28, 17:17 UT (i.e. 32 min after detection and 2 min after notification). Within the reported EP-FXT error circle we find the star Gaia DR3 5778356748440163840 decreasing in brightness from 14.0 to 16.0 mag in clear filter and using Gaia DR3 Gmag magnitude as reference, during a ~3 hour time interval, confirming as due to a stellar flare.

We thank the staff at Boyden Observatory for their excellent support.