N. G. Bochkarev

Steps toward determination of the size and structure of the broad-line region in active galatic nuclei. 8: an intensive HST, IUE, and ground-based study of NGC 5548

K. T. Korista, D. Alloin, P. Barr et al. · The Astrophysical Journal Supplement Series · 1995 · 254 citations · Full text

Natural Sciences, Astronomy, Physics +13

Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. II - an intensive study of NGC 5548 at optical wavelengths

B. M. Peterson, T. J. Balonek, E. S. Barker et al. · The Astrophysical Journal · 1991 · 240 citations · Full text

Natural Sciences, Astronomy, Physics +13

Steps toward Determination of the Size and Structure of the Broad‐Line Region in Active Galactic Nuclei. XIV. Intensive Optical Spectrophotometric Observations of NGC 7469

S. Collier, K. Horne, S. Kaspi et al. · The Astrophysical Journal · 1998 · 206 citations · Full text

Natural Sciences, Astronomy, Physics +14

Steps toward Determination of the Size and Structure of the Broad‐Line Region in Active Galactic Nuclei. XVI. A 13 Year Study of Spectral Variability in NGC 5548

B. M. Peterson, R. Bertram, K. Bischoff et al. · The Astrophysical Journal · 2002 · 206 citations · Full text

Natural Sciences, Astronomy, Physics +13

Steps toward Determination of the Size and Structure of the Broad‐Line Region in Active Galactic Nuclei. XI. Intensive Monitoring of the Ultraviolet Spectrum of NGC 7469

I. Wanders, B. M. Peterson, D. Alloin et al. · The Astrophysical Journal Supplement Series · 1997 · 175 citations · Full text

Natural Sciences, Astronomy, Physics +13