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AGN Driven Winds

22-26 May 2017

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M. Crenshaw – Kinematics of the Narrow-Line Regions in Nearby AGN based on IFU Observations

February 20, 2017 //  by Adi

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We present recent results on the kinematics of the narrow-line regions (NLRs) in nearby Seyfert galaxies based on observations with the Gemini Near Infrared

Field Spectrometer (NIFS), obtained in the Z, J, and K bands at an angular resolution of ~0.1″ and a spectral resolving power of ~5000. We find strong evidence for in situ radiative driving of ionized gas away from molecular gas/dust spirals that enter the AGN ionizing bicone within ~1 kpc of the supermassive black hole (SMBH). We also detect outflowing warm molecular (H_2) gas inside of ~1 kpc after subtraction of the stellar velocity field from the CO bandheads. Our long-slit spectra from the Apache Point Observatory 3.5-meter telescope show that the AGN-ionized gas is typically dominated by rotation beyond ~1 kpc from the central SMBH and often extends out to at least several kpc , defining the extended NLR (ENLR). The NLR outflows in these moderate-luminosity AGN may not be sufficient to evacuate their entire bulges.

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