135 citations · 797 across the 51 of their papers we have counts for
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Long-term BVRI light curves of 5 pre-main sequence stars in the field of "Gulf of Mexico"
Sunay I. Ibryamov, Evgeni H. Semkov, Stoyanka P. Peneva
We present new data from BVRI photometric observations of five PMS stars during the period from April 2013 to July 2014. The stars are located in the field of NGC 7000/IC 5070 ("Gu…
A long-term UBVRI photometric study of the pre-main sequence star V350 Cep
Sunay Ibryamov, Evgeni Semkov, Stoyanka Peneva
Results from UBVRI optical photometric observations of the pre-main sequence star V350 Cep during the period 2004-2014 are presented. The star was discovered in 1977 due to its rem…
Photometric reverberation mapping of Markarian 279
R. Bachev, A. Strigachev, E. Semkov +9
By using standard broad-band VRI photometry we were able to discriminate the variations of the broad hydrogen alpha line from the continuum variations for the active galaxy Mkn 279…