Jet-driven Galaxy-scale Gas Outflows in the Hyperluminous Quasar 3C 273
| Autor: | Jong-Hak Woo, Martin Zwaan, J. Scharwächter, Andreas Schulze, Vardha N. Bennert, Bernd Husemann, Timothy A. Davis, Massimo Gaspari, Knud Jahnke |
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| Rok vydání: | 2019 |
| Předmět: |
Physics
Brightness Jet (fluid) 010504 meteorology & atmospheric sciences Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences Astronomy and Astrophysics Quasar Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Radius Astrophysics - Astrophysics of Galaxies 01 natural sciences Galaxy Density wave theory Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) 0103 physical sciences Outflow 010303 astronomy & astrophysics Astrophysics::Galaxy Astrophysics 0105 earth and related environmental sciences Line (formation) |
| Zdroj: | The Astrophysical Journal |
| ISSN: | 1538-4357 0004-637X |
| DOI: | 10.3847/1538-4357/ab24bc |
| Popis: | We present an unprecedented view on the morphology and kinematics of the extended narrow-line region (ENLR) and molecular gas around the prototypical hyper-luminous quasar 3C273 ($L\sim10^{47}$ erg/s at z=0.158) based on VLT-MUSE optical 3D spectroscopy and ALMA observations. We find that: 1) The ENLR size of 12.1$\pm$0.2kpc implies a smooth continuation of the size-luminosity relation out to large radii or a much larger break radius as previously proposed. 2) The kinematically disturbed ionized gas with line splits reaching 1000km/s out to 6.1$\pm$1.5kpc is aligned along the jet axis. 3) The extreme line broadening on kpc scales is caused by spatial and spectral blending of many distinct gas clouds separated on sub-arcsecond scales with different line-of-sight velocities. The ENLR velocity field combined with the known jet orientation rule out a simple scenario of a radiatively-driven radial expansion of the outflow. Instead we propose that a pressurized expanding hot gas cocoon created by the radio jet is impacting on an inclined gas disk leading to transverse and/or backflow motion with respect to our line-of-sight. The molecular gas morphology may either be explained by a density wave at the front of the outflow expanding along the jet direction as predicted by positive feedback scenario or the cold gas may be trapped in a stellar over-density caused by a recent merger event. Using 3C273 as a template for observations of high-redshift hyper-luminous AGN reveals that large-scale ENLRs and kpc scale outflows may often be missed due to the brightness of the nuclei and the limited sensitivity of current near-IR instrumentation. 15 pages, 6 figures, accepted for publication in ApJ |
| Databáze: | OpenAIRE |
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