No Small Scale Radio Jets Here: Multi-Epoch Observations of Radio Continuum Structures in NGC 1068 with the VLBA

Abstract

We present recent Very Long Baseline Array (VLBA) 5 GHz radio observations of the nearby, luminous Seyfert 2 galaxy NGC 1068 for comparison to similar VLBA observations made on 1997 April 26. By cross-correlating the positions of emitting regions across both epochs, we find that spatially-resolved extra-nuclear radio knots in this system have sub-relativistic transverse speeds (v < 0.1c). We discuss sources of the observed knots and how the radio emission relates to additional phases of gas in the central ~150 pcs of this system. We suggest that the most likely explanation for the observed emission is synchrotron radiation formed by shocked host media via interactions between AGN winds and the host environment.

13 pages, 4 figures, accepted for publication in ApJ

References in corpus (23)

• Radio galaxies and feedback from AGN jets
• A Survey of Kiloparsec-Scale Radio Outflows in Radio-Quiet Active Galactic Nuclei
• The Many Routes to AGN Feedback
• Prevalence of radio jets associated with galactic outflows and feedback from quasars
• ALMA images the many faces of the NGC1068 torus and its surroundings
• Kinematics of the Narrow-Line Region in the Seyfert 2 Galaxy NGC 1068: Dynamical Effects of the Radio Jet
• MAGNUM survey: Compact jets causing large turmoil in galaxies -- Enhanced line widths perpendicular to radio jets as tracers of jet-ISM interaction
• Gemini Near Infrared Field Spectrograph Observations of the Seyfert 2 Galaxy Mrk 573: In Situ Acceleration of Ionized and Molecular Gas Off Fueling Flows
• Quasar Feedback Survey: Multi-phase outflows, turbulence and evidence for feedback caused by low power radio jets inclined into the galaxy disk
• Reading M87's DNA: A Double Helix revealing a large scale Helical Magnetic Field
• Modeling the [Fe II]λ1.644μm outflow and comparison with H${}_2$ and H${}^{+}$ kinematics in the inner 200 pc of NGC 1068
• Quantifying Feedback from Narrow Line Region Outflows in Nearby Active Galaxies. III. Results for the Seyfert 2 Galaxies Markarian 3, Markarian 78, and NGC 1068
• Feeding Versus Feedback in NGC1068 probed with Gemini NIFS. I. Excitation
• Cold gas removal from the centre of a galaxy by a low-luminosity jet
• Fundamental Reference AGN Monitoring Experiment (FRAMEx) I: Jumping Out of the Plane with the VLBA
• The WISE-2MASS Survey: Red Quasars Into the Radio Quiet Regime
• Mass Outflow of the X-ray Emission Line Gas in NGC 4151
• Significant Suppression of Star Formation in Radio-Quiet AGN Host Galaxies with Kiloparsec-Scale Radio Structures
• Investigating the Narrow Line Region Dynamics in Nearby Active Galaxies
• Interactions between the large-scale radio structures and the gas in a sample of optically selected type 2 quasars
• MUSE discovers perpendicular arcs in the inner filament of Cen A
• A Dissection of Spatially Resolved AGN Feedback across the Electromagnetic Spectrum
• Hubble Space Telescope [O III] Emission-Line Kinematics in Two Nearby QSO2s: A Case for X-ray Feedback

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