P. Barr

Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. I - an 8 month campaign of monitoring NGC 5548 with IUE

J. Clavel, G. A. Reichert, D. Alloin et al. · The Astrophysical Journal · 1991 · 400 citations · Full text

Natural Sciences, Astronomy, Physics +12

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. IX. Ultraviolet Observations of Fairall 9

P. M. Rodriguez‐Pascual, D. Alloin, J. Clavel et al. · The Astrophysical Journal Supplement Series · 1997 · 209 citations · Full text

Natural Sciences, Astronomy, Physics +13

Multiwavelength Observations of Short-Timescale Variability in NGC 4151. IV. Analysis of Multiwavelength Continuum Variability

R. Edelson, Tal Alexander, D. M. Crenshaw et al. · The Astrophysical Journal · 1996 · 193 citations · Full text

Natural Sciences, Astronomy, Extragalactic Astronomy +10

Limits of X-ray variability in active galactic nuclei

P. Barr, R. F. Mushotzky · Nature · 1986 · 133 citations

Natural Sciences, Astronomy, Physics +11