SIMBAD references

2020MNRAS.497.5103C - Mon. Not. R. Astron. Soc., 497, 5103-5117 (2020/October-1)

Powerful ionized gas outflows in the interacting radio galaxy 4C+29.30.


Abstract (from CDS):

We investigate the ionized gas excitation and kinematics in the inner 4.3 ×6.2 kpc2 of the merger radio galaxy 4C+29.30. Using optical integral field spectroscopy with the Gemini North Telescope, we present flux distributions, line-ratio maps, peak velocities and velocity dispersion maps as well as channel maps with a spatial resolution of ~955 pc. We observe high blueshifts of up to ∼-650 km s–1 in a region ∼1 arcsec south of the nucleus (the southern knot - SK), which also presents high velocity dispersions (∼250 km s–1), which we attribute to an outflow. A possible redshifted counterpart is observed north from the nucleus (the northern knot - NK). We propose that these regions correspond to a bipolar outflow possibly due to the interaction of the radio jet with the ambient gas. We estimate a total ionized gas mass outflow rate of {dot}M_ out_ = 25.4 ^+11.5 ^_ -7.5_ M yr–1with a kinetic power of {dot}E = 8.1 ^+10.7 ^_ -4.0_ ×1042 erg s–1, which represents 5.8 ^+7.6 ^_ -2.9_ per cent of the active galactic nucleus (AGN) bolometric luminosity. These values are higher than usually observed in nearby active galaxies with the same bolometric luminosities and could imply a significant impact of the outflows in the evolution of the host galaxy. The excitation is higher in the NK - that correlates with extended X-ray emission, indicating the presence of hotter gas - than in the SK, supporting a scenario in which an obscuring dust lane is blocking part of the AGN radiation to reach the southern region of the galaxy.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: active - galaxies: individual: 4C+29.30 - galaxies: jets - galaxies: kinematics and dynamics - galaxies: nuclei

Simbad objects: 11

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