scholarly journals Reddening in the Narrow-Line Region of Active Galactic Nuclei

1989 ◽  
Vol 134 ◽  
pp. 329-330
Author(s):  
I.M. Yancoulova ◽  
Z.I. Tsvetanov
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Narrow Line ◽  
Line Region ◽  
Narrow Line Region ◽  
Upper Level ◽  
Far Ultraviolet

The best indicators of the reddening in the narrow-line regions of AGN are ratios of pairs of forbidden lines arising from a common upper level. The ratios of [SII] λ4072/λ10320 and [OII] λ7325/λ2470 are good examples, but they include lines in the far ultraviolet and infrared regions which are difficult to observe.

scholarly journals DETERMINING INCLINATIONS OF ACTIVE GALACTIC NUCLEI VIA THEIR NARROW-LINE REGION KINEMATICS. II. CORRELATION WITH OBSERVED PROPERTIES

2014 ◽  
Vol 785 (1) ◽  
pp. 25 ◽  
Author(s):  
T. C. Fischer ◽  
D. M. Crenshaw ◽  
S. B. Kraemer ◽  
H. R. Schmitt ◽  
T. J. Turner
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Narrow Line ◽  
Line Region ◽  
Narrow Line Region

scholarly journals The narrow-line region of high-luminosity active galactic nuclei

1993 ◽  
Vol 410 ◽  
pp. 534 ◽  
Author(s):  
Beverley J. Wills ◽  
H. Netzer ◽  
M. S. Brotherton ◽  
Mingsheng Han ◽  
D. Wills ◽  
...  
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Narrow Line ◽  
High Luminosity ◽  
Line Region ◽  
Narrow Line Region

Dust obscuration of the narrow line region of active galactic nuclei

Astrophysics ◽  
2012 ◽  
Vol 55 (4) ◽  
pp. 460-470 ◽  
Author(s):  
L. Sargsyan ◽  
M. Gevorgyan ◽  
H. V. Abrahamyan ◽  
G. Kostandyan ◽  
G. Paronyan ◽  
...  
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Narrow Line ◽  
Line Region ◽  
Narrow Line Region

scholarly journals HUBBLE SPACE TELESCOPESPECTROSCOPIC OBSERVATIONS OF THE NARROW-LINE REGION IN NEARBY LOW-LUMINOSITY ACTIVE GALACTIC NUCLEI

2008 ◽  
Vol 136 (4) ◽  
pp. 1677-1702 ◽  
Author(s):  
Jonelle L. Walsh ◽  
Aaron J. Barth ◽  
Luis C. Ho ◽  
Alexei V. Filippenko ◽  
Hans-Walter Rix ◽  
...  
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Narrow Line ◽  
Line Region ◽  
Narrow Line Region
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