TITLE:   GCN CIRCULAR
NUMBER:  41192
SUBJECT: EP-WXT trigger 01709195487: confirmation of a stellar flare by BOOTES-6 & BOOTES-7
DATE:    25/07/29 07:39:10 GMT
FROM:    I. Perez-Garcia at Institute of Astrophysics of Andalusia <ipg@iaa.es>

I. Perez-Garcia, S.-Y. Wu, A. J. Castro-Tirado, E. J. Fernandez-Garcia, M.D. Caballero-Garcia, S. Guziy, G. Garcia-Segura, R. Sanchez-Ramirez (IAA-CSIC), Y.-D. Hu (INAF-OAB), C. Perez del Pulgar, A. Castellon, I. Carrasco (Univ. de Malaga), L. Hernandez-Garcia (Univ. de Valparaiso), M. Gritsevich (Univ. of Helsinki), D.-R. Xiong (Yunnan Observatories of CAS), B.-B. Zhang (Nanjing Univ.), P. J. Meintjes and H. J. van Heerden (UFS, South Africa), A. Martin-Carrillo and L. Hanlon (UCD, Ireland) and A. Maury (Space, San Pedro de Atacama), on behalf of a larger collaboration, report:

Following the detection of trigger 01709195487 by EP-WXT (Liang et al. GCN 41173), the 0.6m robotic telescopes BOOTES-7 at San Pedro de Atacama (Chile) responded to the alert on July 27, 07:40 UT (i.e. 2 min after notification and 6 min after the detection). Using SDSS g filter and ATLAS REFCAT2 gmag as a reference, we measure an initial magnitude of 12.2 +/- 0.1. Later, on July 27, 23:55 UT (16.25 hours after BOOTES-7 images) the BOOTES-6/DPRT 0.6m robotic telescope at Boyden Observatory in Maselspoort (South Africa) covered the same region, measuring the same source in the same filter with a magnitude of 13.0 +/- 0.1, confirming the EP X-ray trigger due to a stellar flare. 

We thank the staff at San Pedro de Atacama Celestial Observations and Boyden Observatory for their excellent support.