We report observations of the flickering of the recurrent nova T CrB in UBV bands obtained during three nights in 2024. We find that (1) the optical luminosity of the hot component is in the range of 19 – 28 L⊙ , which corresponds to a mass accretion rate of 0.6 − 1.0 × 10−8 M⊙ yr−1, and (2) on a time scale of 1 hour the mass accretion rate varies as ˙Ma (max/min) ∼ 1.4. (3) We apply our model to track local deviations from the average accretion rate across the T CrB accretion disk in relation to the observed flickering. The results show that in the optical part of the disk, the obtained values correlate with the observations. The accretion rate variations increase strongly in the internal disk part, which can be interpreted as an indication of interaction processes within the contact zone. The data are available upon request from the authors.
Keywords: stars: binaries: symbiotic — novae, cataclysmic variables — accretion, accretion disks — stars: individual: TCrB