The first spectra for the RX J0440.9+4431 from 2m Terskol telescope
  We present the first results on the spectra of Be/X-ray binary RX J0440.9+4431 obtained with the 2m Ritchey-Cretein-Coude telescope with Cassegrain Multi Mode Spectrograph (CMMS) (with R = 14000) at Terskol observatory. The H-alpha line profile indicates that the new episode of the V/R variability is occuring in the system. The profiles of the H-alpha, H-beta and HeI 7065.71, 6678.15, 5875.97 lines were analyzed and equivalent width were determined. We compared our H-alpha line profile parameters with the previous results from the literature and estimated characteristic time scale for disc changes as about 14 years. 
Andrew Simon (1), A. V. Bondar (2), V. M. Reshetnyk (1) ((1) National   Taras Shevchenko University of Kyiv, Glushkova ave.,...
astro-ph.SR