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Date and Time of the Query: 2019-06-17 T05:38:11 PDT
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For refcode 2014ApJ...786....3S:
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Copyright by American Astronomical Society. Reproduced by permission
2014ApJ...786....3S The Three-dimensional Properties and Energetics of Radio-jet-driven Outflows Shih, Hsin-Yi; Stockton, Alan Abstract. Extended emission-line regions (EELRs), found around radio-loud sources, are likely outflows driven by one form of powerful active galactic nucleus (AGN) feedback mechanism. We seek to constrain the three-dimensional gas properties and the outflow energetics of the EELRs in this study. We used an integral field unit to observe EELRs around two samples of radio-loud AGNs with similar radio properties, but different orientations: a sample of quasars and a sample of radio galaxies. A morphological comparison suggests a scenario where the three-dimensional EELR gas distribution follows rough biconical shapes with wide opening angles. The average extent of the EELRs is ~18.5 kpc. The estimated average mass of the EELRs, with reasonable assumptions for gas densities, is ~3 x 10^8^ M_sun_, and the average mass outflow rate is ~30 M_sun_ yr^--1^. The EELRs around quasars and radio galaxies share similar kinematic properties. Both samples have velocity structures that display a range of complexities, they do not appear to correlate with the jet orientations, and both span a similar range of velocity dispersions. Around 30% of the detected EELRs show large-scale rotational motions, which may have originated from recent mergers involving gas-rich disk galaxies. Some of the data presented herein were obtained at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. Key words: galaxies: evolution, galaxies: jets, galaxies: kinematics and dynamics, quasars: emission lines
Retrieve 110 NED objects in this reference.
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