Quantifying Feedback from Narrow Line Region Outflows in Nearby Active Galaxies. I. Spatially Resolved Mass Outflow Rates for the Seyfert 2 Galaxy Markarian 573

The basic question I want to address is : “What mechanism or mechanisms accelerate the gas in the narrow line region of active galaxies, yielding the observed profile shapes.” At the present time there is no generally accepted answer to this question. Part of the problem dates back to the first few Seyferts that were discovered which, in retrospect, seem to have had anomalously broad lines. For example NGC 1068, MKN 3, and MKN 78 have [OIII] λ 5007 FWHM ~ 1000 km s-1, which is clearly greater than anything associated with a normal galaxy velocity fields. An obvious implication was that these high velocities were in some way related to the activity. This view was reinforced by the discovery of a correlation between [OIII] FWHM and non-thermal radio luminosity (Wilson and Willis 1981). When many radio sources were found to have linear double or triple morphology (e.g. Ulvestad and Wilson 1984a,b), a natural explanation seemed to be outflowing radio jets which stir up the narrow line region and thus generate the correlation between line width and radio luminosity.

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Size and properties of the narrow-line region in Seyfert-1 galaxies from spatially-resolved optical spectroscopy

Astronomy and Astrophysics ◽

10.1051/0004-6361:20065477 ◽

2006 ◽

Vol 459 (1) ◽

pp. 55-69 ◽

Cited By ~ 88

Author(s):

N. Bennert ◽

B. Jungwiert ◽

S. Komossa ◽

M. Haas ◽

R. Chini

Keyword(s):

Optical Spectroscopy ◽

Narrow Line ◽

Spatially Resolved ◽

Line Region ◽

Narrow Line Region

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Gemini/GMOS IFU gas velocity ‘tomography’ of the narrow line region of nearby active galaxies

Monthly Notices of the Royal Astronomical Society ◽

10.1111/j.1365-2966.2009.14485.x ◽

2009 ◽

Vol 396 (1) ◽

pp. 2-18 ◽

Cited By ~ 64

Author(s):

F. K. B. Barbosa ◽

T. Storchi-Bergmann ◽

R. Cid Fernandes ◽

C. Winge ◽

H. Schmitt

Keyword(s):

Active Galaxies ◽

Narrow Line ◽

Gas Velocity ◽

Line Region ◽

Narrow Line Region ◽

Velocity Tomography

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A Separation of Systematic and Turbulent Motions in the Narrow-Line Region of NGC 4151

Symposium - International Astronomical Union ◽

10.1017/s0074180900141312 ◽

1989 ◽

Vol 134 ◽

pp. 352-354

Author(s):

Hartmut Schulz ◽

Berto Boer

Keyword(s):

Radio Source ◽

Galactic Disk ◽

Narrow Line ◽

Line Profiles ◽

X Ray ◽

Ngc 4151 ◽

Spatially Resolved ◽

Line Region ◽

Bulk Motion ◽

Narrow Line Region

Line profiles from the spatially resolved narrow-line region of NGC 4151 are separated into several bulk-motion components which show velocity dispersions two to three times larger than starburst nuclei with similar luminosity. The components are suggested to arise within the galactic disk and by filaments entrained in or situated along the shells of two super-bubbles. The large cone-like SW bubble is able to account for the SW soft-X ray excess and the hole in the NLR disk through which a UV-radiation cone emerges. The bubbles appear to be related to the nuclear radio source.

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Cospatial Line Emission and Accelerated Outflow in the Spatially Resolved Narrow-Line Region of NGC 4151: Confirming Model Predictions

International Astronomical Union Colloquium ◽

10.1017/s0252921100040471 ◽

1997 ◽

Vol 159 ◽

pp. 359-360

Author(s):

D. Moore ◽

R.D. Cohen ◽

M.M. De Robertis

Keyword(s):

Emission Line ◽

Spectral Resolution ◽

Line Emission ◽

Narrow Line ◽

Line Flux ◽

Ngc 4151 ◽

Spatially Resolved ◽

Line Region ◽

Model Predictions ◽

Narrow Line Region

AbstractWe present results of high S/N, high spatial and spectral resolution (0″.65 and 0.8Å FWHM, respectively) spectrophotometry of the NLR of NGC 4151 using the Keck 10-m Telescope. The observations are the first in a series that test unambiguously several specific predictions that are based on earlier modeling of spatially unresolved emissionline spectra. Importantly, we partially resolve the source of most of the emission-line flux. Thus, the observations suitably complement analyses of spatially unresolved NLR spectra.

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Identifying the extent of AGN outflows using spatially resolved gas kinematics

Proceedings of the International Astronomical Union ◽

10.1017/s1743921320002185 ◽

2020 ◽

Vol 15 (S359) ◽

pp. 285-287

Author(s):

Beena Meena ◽

D. M. Crenshaw ◽

T. C. Fischer ◽

Henrique R. Schmitt ◽

M. Revalski ◽

...

Keyword(s):

Hubble Space Telescope ◽

Host Galaxy ◽

Narrow Line ◽

Ionized Gas ◽

Star Forming ◽

Gas Kinematics ◽

Spatially Resolved ◽

Dimensional Modeling ◽

Line Region ◽

Narrow Line Region

AbstractWe present spatially resolved kinematics of ionized gas in the narrow-line region (NLR) and extended narrow-line region (ENLR) in a sample of nearby active galaxies. Utilizing long-slit spectroscopy from Apache Point Observatory (APO)13s ARC 3.5 m Telescope and Hubble Space Telescope (HST) we analyzed the strong λ5007 Å [O III] emission line profiles and mapped the radial velocity distribution of gas at increasing radii from the center. We identified the extents of Active Galactic Nuclei (AGN) driven outflows in our sample and determined the distances at which the observed gas kinematics is being dominated by the rotation of the host galaxy. We also measured the effectiveness of radiative driving of the ionized gas using mass distribution profiles calculated with two-dimensional modeling of surface brightness profiles in our targets. Finally, we compared our kinematic results of the outflow sizes with the maximum distances at which the gas is being radiatively driven to investigate whether these outflows are capable of disrupting or evacuating the star-forming gas at these distances.

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