Active Galactic Nuclei
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Published By Springer Netherlands

9780792302575, 9789400909632
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scholarly journals Quasar Evolution and the Growth of Black Holes in the Nuclei of Active Galaxies

1989 ◽  
pp. 233-239 ◽  
Author(s):  
R. D. Blandford
Keyword(s):  
Black Holes ◽  
Active Galaxies

The Origin of the Coronal Lines in Seyfert Galaxies

1989 ◽  
pp. 320-320
Author(s):  
K. T. Korista ◽  
G. J. Ferland
Keyword(s):  
Seyfert Galaxies

Quasars in the Field of SA94 — A colour survey

1989 ◽  
pp. 41-42
Author(s):  
S. Cristiani ◽  
C. Barbieri ◽  
A. Iovino ◽  
F. La Franca ◽  
A. Nota

Observational Evidence for Supermassive Black Holes

1989 ◽  
pp. 217-232 ◽  
Author(s):  
Alan Dressler
Keyword(s):  
Black Holes ◽  
Supermassive Black Holes ◽  
Observational Evidence

A Complete Sample of Flat-Spectrum Radio Sources from the Parkes 2.7 GHz Survey

1989 ◽  
pp. 39-40
Author(s):  
Ann Savage ◽  
David L. Jauncey ◽  
Graeme L. White ◽  
Bruce A. Peterson ◽  
W. L. Peters ◽  
...  
Keyword(s):  
Radio Sources ◽  
Complete Sample ◽  
Spectrum Radio

A Comparison of the X-Ray Spectra of Quasars and BL Lac Objects

1989 ◽  
pp. 197-198
Author(s):  
D. M. Worrall ◽  
B. J. Wilkes
Keyword(s):  
Bl Lac Objects ◽  
X Ray ◽  
Bl Lac

Is there a Relation between Optical Emission Line Strengths and Continuum Shapes?

1989 ◽  
pp. 187-188
Author(s):  
Belinda J. Wilkes ◽  
Martin Elvis ◽  
Jonathan McDowell
Keyword(s):  
Emission Line ◽  
Optical Emission ◽  
Line Strengths

Variable X-Ray Absorption in NGC 4151

1989 ◽  
pp. 182-183
Author(s):  
R. S. Warwick ◽  
T. Yaqoob ◽  
K. A. Pounds
Keyword(s):  
X Ray ◽  
Ngc 4151 ◽  
X Ray Absorption

The Flux and Spectral Variability of NGC6814 as Observed with EXOSAT

1989 ◽  
pp. 179-181
Author(s):  
J. P. D. Mittaz ◽  
G. Branduardi-Raymont
Keyword(s):  
Spectral Variability
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