• Rotation of the Mass Donors in High-mass X-ray Binaries and Symbiotic Stars 

      Autor: Stoyanov, K.; Zamanov, R.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      Our aim is to investigate the tidal interaction in High-mass X-ray Binaries and Symbiotic stars in order to determine in which objects the rotation of the mass donors is synchronized or pseudosynchronized with the orbital ...
    • Simultaneous UBVRI Observations of the AE Aquarii Blobs 

      Autor: Latev, G.; Zamanov, R.; Boeva, S.; Stoyanov, K.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      We summarize the results of our study of the cataclysmic variable AE Aqr on the basis of simultaneous UBV RI observations. For the flares, we estimated the average risetime of about 300 sec, and colours (U−B)0~1.1 and (B−V ...