Resolved Spectroscopy of the Narrow‐Line Region in NGC 1068. III. Physical Conditions in the Emission‐Line Gas

2000 ◽  
Vol 544 (2) ◽  
pp. 763-779 ◽  
Author(s):  
Steven B. Kraemer ◽  
D. Michael Crenshaw
Keyword(s):  
Emission Line ◽  
Narrow Line ◽  
Physical Conditions ◽  
Line Region ◽  
Ngc 1068 ◽  
Narrow Line Region

Physical Conditions in the Inner Narrow‐Line Region of the Seyfert 2 Galaxy NGC 1068

1998 ◽  
Vol 508 (1) ◽  
pp. 232-242 ◽  
Author(s):  
Steven B. Kraemer ◽  
José R. Ruiz ◽  
D. Michael Crenshaw
Keyword(s):  
Narrow Line ◽  
Physical Conditions ◽  
Line Region ◽  
Ngc 1068 ◽  
Narrow Line Region

scholarly journals Resolved Spectroscopy of the Narrow‐Line Region in NGC 1068. II. Physical Conditions near the NGC 1068 “Hot Spot”

2000 ◽  
Vol 532 (1) ◽  
pp. 256-266 ◽  
Author(s):  
Steven B. Kraemer ◽  
D. Michael Crenshaw
Keyword(s):  
Hot Spot ◽  
Narrow Line ◽  
Physical Conditions ◽  
Line Region ◽  
Ngc 1068 ◽  
Narrow Line Region

The Ionization Structure of the Narrow‐Line Region of NGC 1068 and Its Relationship to the Extended Radio Emission

1997 ◽  
Vol 487 (2) ◽  
pp. 560-567 ◽  
Author(s):  
A. Capetti ◽  
D. J. Axon ◽  
F. D. Macchetto
Keyword(s):  
Radio Emission ◽  
Narrow Line ◽  
Ionization Structure ◽  
Line Region ◽  
Extended Radio ◽  
Ngc 1068 ◽  
Narrow Line Region

scholarly journals Physical Conditions in the Narrow‐Line Region of Markarian 3. I. Observational Results

2005 ◽  
Vol 619 (1) ◽  
pp. 116-133 ◽  
Author(s):  
Nicholas R. Collins ◽  
Steven B. Kraemer ◽  
D. Michael Crenshaw ◽  
Jose Ruiz ◽  
Rajesh Deo ◽  
...  
Keyword(s):  
Narrow Line ◽  
Physical Conditions ◽  
Line Region ◽  
Narrow Line Region

The Extended Narrow Line Region of NGC 4151: Spatial Variations of the Emission Line Ratios and their Implications

1992 ◽  
pp. 434-435
Author(s):  
Balthasar Vila-Vilaró ◽  
Andrew Robinson ◽  
Stefan J. Wagner
Keyword(s):  
Emission Line ◽  
Spatial Variations ◽  
Narrow Line ◽  
Ngc 4151 ◽  
Line Region ◽  
Narrow Line Region

Subarcsecond Mid-Infrared Imaging of Warm Dust in the Narrow-Line Region of NGC 1068

1993 ◽  
Vol 419 ◽  
pp. 136 ◽  
Author(s):  
Murray Cameron ◽  
John W. V. Storey ◽  
Valentin Rotaciuc ◽  
Reinhard Genzel ◽  
Laurent Verstraete ◽  
...  
Keyword(s):  
Infrared Imaging ◽  
Narrow Line ◽  
Mid Infrared ◽  
Line Region ◽  
Ngc 1068 ◽  
Narrow Line Region

scholarly journals Emission-Line Asymmetries and the Kinematics of the Narrow-Line Region in AGNs

1989 ◽  
Vol 134 ◽  
pp. 347-348
Author(s):  
Richard A. Shaw ◽  
Michael M. De Robertis
Keyword(s):  
Emission Line ◽  
Fundamental Problem ◽  
Signal To Noise Ratio ◽  
Critical Density ◽  
High Signal ◽  
Symmetric Model ◽  
Narrow Line ◽  
Line Region ◽  
Wide Range ◽  
Narrow Line Region

We have obtained high signal-to-noise ratio CCD spectra at ≤ 150 km/s resolution for 6 high-ionization Seyfert galaxies. We analyzed the profiles of the emission-lines over a wide range in both ionization potential (IP) and critical density (Ncr) in order to study the fundamental problem of cloud motion in the narrow-line region (NLR). Using the known correlations between FWHM and IP and/or Ncr for these galaxies, and assuming that the blueward profile asymmetries result from the combined effects of radially infalling or outflowing clouds and extinction within or between them, we deconvolve these effects by analyzing the correlation between emission-line asymmetries and both IP and Ncr. We find fair to good correlations in the sense that lines with high IP and Ncr also tend to have high asymmetry, while lines with low IP and Ncr have low but usually non-zero asymmetry. Simulated emission-line profiles generated with a spherically-symmetric model of a NLR suggest that the extinction arises primarily within radially infalling clouds.

scholarly journals Jet-Driven Motions in the Narrow-Line Region of NGC 1068

1998 ◽  
Vol 496 (2) ◽  
pp. L75-L78 ◽  
Author(s):  
D. J. Axon ◽  
A. Marconi ◽  
A. Capetti ◽  
F. D. Macchetto ◽  
E. Schreier ◽  
...  
Keyword(s):  
Narrow Line ◽  
Line Region ◽  
Ngc 1068 ◽  
Narrow Line Region

scholarly journals Resolved Spectroscopy of the Narrow‐Line Region in NGC 1068. I. The Nature of the Continuum Emission

2000 ◽  
Vol 532 (1) ◽  
pp. 247-255 ◽  
Author(s):  
D. Michael Crenshaw ◽  
Steven B. Kraemer
Keyword(s):  
Continuum Emission ◽  
Narrow Line ◽  
Line Region ◽  
Ngc 1068 ◽  
Narrow Line Region ◽  
The Continuum

Space Telescope Imaging Spectrograph Long‐Slit Spectroscopy of the Narrow‐Line Region of NGC 4151. II. Physical Conditions along Position Angle 221o

2000 ◽  
Vol 531 (1) ◽  
pp. 278-295 ◽  
Author(s):  
S. B. Kraemer ◽  
D. M. Crenshaw ◽  
J. B. Hutchings ◽  
T. R. Gull ◽  
M. E. Kaiser ◽  
...  
Keyword(s):  
Position Angle ◽  
Narrow Line ◽  
Space Telescope ◽  
Physical Conditions ◽  
Ngc 4151 ◽  
Line Region ◽  
Narrow Line Region ◽  
Imaging Spectrograph
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