Identifying the extent of AGN outflows using spatially resolved gas kinematics

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.

scholarly journals The Narrow Line Region in 3D: mapping AGN feeding and feedback

2014 ◽  
Vol 10 (S309) ◽  
pp. 190-195 ◽  
Author(s):  
Thaisa Storchi Bergmann
Keyword(s):  
Seyfert Galaxies ◽  
Molecular Gas ◽  
Narrow Line ◽  
Ionized Gas ◽  
Gas Kinematics ◽  
Integral Field Spectroscopy ◽  
Line Region ◽  
The Galaxy ◽  
Mass Outflow ◽  
Narrow Line Region

AbstractEarly studies of nearby Seyfert galaxies have led to the picture that the Narrow Line Region is a cone-shaped region of gas ionized by radiation from a nuclear source collimated by a dusty torus, where the gas is in outflow. In this contribution, I discuss a 3D view of the NLR obtained via Integral Field Spectroscopy, showing that: (1) although the region of highest emission is elongated (and in some cases cone-shaped), there is also lower level emission beyond the “ionization cone”, indicating that the AGN radiation leaks through the torus; (2) besides outflows, the gas kinematics include also rotation in the galaxy plane and inflows; (3) in many cases the outflows are compact and restricted to the inner few 100pc; we argue that these may be early stages of an outflow that will evolve to an open-ended, cone-like one. Inflows are observed in ionized gas in LINERs, and in warm molecular gas in more luminous AGN, being usually found on hundred of pc scales. Mass outflow rates in ionized gas are of the order of a few M⊙ yr−1, while the mass inflow rates are of the order of tenths of M⊙ yr−1. Mass inflow rates in warm molecular gas are ≈ 4–5 orders of magnitude lower, but these inflows seem to be only tracers of more massive inflows in cold molecular gas that should be observable at mm wavelengths.

scholarly journals Size and properties of the narrow-line region in Seyfert-2 galaxies from spatially-resolved optical spectroscopy

2006 ◽  
Vol 456 (3) ◽  
pp. 953-966 ◽  
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

scholarly journals Origin of the Gas in the Extended Narrow-Line Region of Nearby Seyfert Galaxies: The Case of Mrk 6

2009 ◽  
Vol 5 (S267) ◽  
pp. 327-327
Author(s):  
V. Cracco ◽  
S. Ciroi ◽  
F. Di Mille ◽  
L. Vaona ◽  
P. Rafanelli ◽  
...  
Keyword(s):  
Seyfert Galaxy ◽  
Seyfert Galaxies ◽  
Special Astrophysical Observatory ◽  
Narrow Line ◽  
Physical Processes ◽  
Ionized Gas ◽  
Preliminary Results ◽  
Line Region ◽  
Narrow Line Region ◽  
Open Question

AbstractIonization cones are one of the most important pieces of evidence supporting the AGN unified model (Antonucci & Miller 1985; Urry & Padovani 1995). Until now, the physical processes at work in the cones are not completely understood. A still open question concerns the origin of the gas. To study the origin of the ionized gas, we first selected a sample of nearby (z<0.03) Seyfert galaxies showing extended [O iii] λ5007 emission. We then observed these galaxies with the MultiPupil Fiber Spectrograph (MPFS) at the 6-m telescope of the Special Astrophysical Observatory (Russia). Here we present very preliminary results on the properties of the narrow-line region (NLR) of the intermediate Seyfert galaxy Mrk 6.

scholarly journals Resolved Spectroscopy of the Narrow-Line Region in NGC 1068: Kinematics of the Ionized Gas

2000 ◽  
Vol 532 (2) ◽  
pp. L101-L104 ◽  
Author(s):  
D. Michael Crenshaw ◽  
Steven B. Kraemer
Keyword(s):  
Narrow Line ◽  
Ionized Gas ◽  
Line Region ◽  
Ngc 1068 ◽  
Narrow Line Region

Study of the Extended Narrow‐Line Region in the Host Galaxy of the Lensed QSO 2237+0305 (z= 1.69)

2004 ◽  
Vol 613 (1) ◽  
pp. 86-94 ◽  
Author(s):  
V. Motta ◽  
E. Mediavilla ◽  
J. A. Munoz ◽  
E. Falco
Keyword(s):  
Host Galaxy ◽  
Narrow Line ◽  
Line Region ◽  
Narrow Line Region

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

2006 ◽  
Vol 459 (1) ◽  
pp. 55-69 ◽  
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

Imaging spectrophotometry of ionized gas in NGC 1068. I - Kinematics of the narrow-line region

1990 ◽  
Vol 355 ◽  
pp. 70 ◽  
Author(s):  
Gerald Cecil ◽  
Jonathan Bland ◽  
R. Brent Tully
Keyword(s):  
Narrow Line ◽  
Ionized Gas ◽  
Line Region ◽  
Ngc 1068 ◽  
Narrow Line Region

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

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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