100 citations · 572 across the 16 of their papers we have counts for
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Long-term variability of the optical spectra of NGC 4151: II. Evolution of the broad Ha and Hb emission-line profiles
A. I. Shapovalova, L. C. Popovic, A. N. Burenkov +5
Results of the long-term (11 years, from 1996 to 2006) H and H line variations of the active galactic nucleus of NGC 4151 are presented. High quality spectra (S/N>50 and R~8A…
Long term variability of the Broad Emission Line profiles in AGN
A. I. Shapovalova, L. C. Popovic, N. G. Bochkarev +6
Results of a long-term monitoring ( years) of the broad line and continuum fluxes of three Active Galactic Nuclei (AGN), 3C 390.3, NGC 4151, and NGC 5548, are presented…
Magnetic Field Measurement in Black Hole X-Ray Binary Cygnus X-1
E. A. Karitskaya, N. G. Bochkarev, S. Hubrig +5
X-ray binary Cygnus X-1 is microquasar containing historically first candidate to black hole. Paradigm of magnetic disc accretion dominates in theoretical models describing process…