GCN Circular 41835
Subject
SVOM/sb25091517: FRAM-ORM stellar flare - transient observation
Event
Date
2025-09-16T01:34:05Z (7 days ago)
From
Martin Jelinek at Astro.Inst-AVCR,Ondrejov <martin.jelinek@asu.cas.cz>
Via
email
Martin Jelinek, Jan Strobl (ASU CAS Ondrejov, CZ),
Sergey Karpov, Martin Masek, Petr Janecek, Jakub Jurysek,
Jan Ebr, Ronan Cunniffe, Petr Travnicek and Michael Prouza
(Institute of Physics, Prague, CZ)
report:
The 25cm robotic telescope FRAM-ORM at La Palma (Spain) reacted
robotically to the alert of SVOM/sb25091517 (Julakanti et al. GCN
41834), obtaining a series of 70 x 60s unfiltered images starting at
22:51 UT, i.e. 50 min post trigger.
We clearly detect the high proper motion star 1RXS J020013.6-084106 at
coordinates R.A. = 02:00:12.98, Dec. = -08:40:53.5 (J2000), located 18
arcsec from the MXT position as noted in the discovery circular. The
star shows a decay from unfiltered magnitude ~11.0 to ~11.4 over our
80-minute observing sequence ending at 00:11 UT, with one brief 0.1 mag
rebrightening episode during the observations.
The observed photometric behavior is consistent with the stellar flaring
nature suggested in the discovery circular.