{
  "circularId": 44394,
  "submitter": "Martin Jelinek at Astro.Inst-AVCR,Ondrejov <martin.jelinek@asu.cas.cz>",
  "createdOn": 1776884027129,
  "subject": "EP-WXT trigger 01709260362: FRAM-ORM optical observations confirm flaring star G 151-9",
  "submittedHow": "email",
  "body": "Martin Jelinek, Jan Strobl and Filip Novotný (ASU CAS Ondrejov, CZ),\nSergey Karpov, Martin Masek, Petr Janecek, Jakub Jurysek, Jan Ebr,\nRonan Cunniffe, Petr Travnicek and Michael Prouza\n(Institute of Physics, Prague, CZ)\n\nreport:\n\nThe 25cm robotic telescope FRAM-ORM at La Palma (Spain) reacted\nrobotically to the EP-WXT alert of trigger 01709260362 (Yang et al.,\nGCN 44386), obtaining a series of 60 s unfiltered images starting at\n21:24:16.6 UT on 2026-04-21, i.e. ~32.2 min post trigger\n(T0 = 2026-04-21T20:52:02.749 UTC, JD 2461152.36948).\n\nWe clearly detect the flaring star G 151-9 identified by the EP team\n(Yang et al., GCN 44386). The source fades by approximately 0.25 mag\nover the course of our observations, which span from T0+32.2 min to\nT0+2h 13.6 min. The overall decay is consistent with a power-law of index\nalpha = 0.67 +/- 0.16, superimposed on the quiescent brightness of the\nstar at an unfiltered magnitude of 12.12 +/- 0.07. This is consistent\nwith the stellar flare interpretation.\n\n"
}