Bright radio flare from the X-ray binary Swift J1727.8-1613

Trushkin S. A.; Bursov N. N.; Nizhelskij N. A.; Tsybulev, P. G.

We have almost daily observed the black hole candidate X-ray binary Swift J1727.8-1613 on 14-30 September 2023 with the ''Southern Sector and Flat mirror'' antenna and later from 1 October 2003 with the ''Northern Sector'' antenna of the RATAN-600 radio telescope (SAO RAS) using the similar radiometers at 4.7, 8.2, 11.2 and 22.3 GHz, but also we have 2.3 GHz radiometer at the second antenna.