143 citations · 896 across the 61 of their papers we have counts for
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Optical light curves of FUor and FUor-like objects
E. Semkov, S. Peneva, S. Ibryamov
Using recent data from photometric monitoring and data from the photographic plate archives we aim to study, the long-term photometric behavior of FUors. The construction of the hi…
Long-term photometric behavior of the PMS stars V977 Cep and V982 Cep in the vicinity of NGC 7129
Sunay I. Ibryamov, Evgeni H. Semkov, Teodor R. Milanov +1
Long-term BVRI photometric light curves of the pre-main sequence stars V977 Cep and V982 Cep during the period from 2000 October to 2016 August are presented. The stars are located…
Photometric and spectroscopic study of the new FUor star V2493 Cyg
E. H. Semkov, S. P. Peneva, S. I. Ibryamov
The recent results from photometric and spectroscopic study of the FUor star V2493 Cyg (HBC 722) are presented in the paper. The outburst of V2493 Cyg was registered during the sum…
Exceptional outburst of the blazar CTA 102 in 2012: The GASP-WEBT campaign and its extension
V. M. Larionov, M. Villata, C. M. Raiteri +49
After several years of quiescence, the blazar CTA 102 underwent an exceptional outburst in 2012 September-October. The flare was tracked from gamma-ray to near-infrared frequencies…