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arXiv · 1504.04694

Radio Jets Clearing theWay Through a Galaxy: Watching Feedback in Action in the Seyfert galaxy IC 5063

R. Morganti·T. A. Oosterloo·J. B. R. Oonk·W. Frieswijk·C. N. Tadhunter
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Abstract

High-resolution (0.5 arcsec) CO(2-1) observations performed with the Atacama Large Millimetre/submillimetre Array have been used to trace the kinematics of the molecular gas in the Seyfert 2 galaxy{IC~5063}. Although one of the most radio-loud Seyfert galaxy, IC~5063 is a relatively weak radio source (P_1.4GHz = 3 x 10^23 W Hz^-1). The data reveal that the kinematics of the gas is very complex. A fast outflow of molecular gas extends along the entire radio jet (~ 1 kpc), with the highest outflow velocities about 0.5 kpc from the nucleus, at the location of the brighter hot-spot in the W lobe. All the observed characteristics can be described by a scenario of a radio plasma jet expanding into a clumpy medium, interacting directly with the clouds and inflating a cocoon that drives a lateral outflow into the interstellar medium. This suggests that most of the observed cold molecular outflow is due to fast cooling of the gas after the passage of a shock and that it is the end product of the cooling process.

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R. Morganti, T. A. Oosterloo, J. B. R. Oonk, W. Frieswijk, C. N. Tadhunter. 2015-04-18. Radio Jets Clearing theWay Through a Galaxy: Watching Feedback in Action in the Seyfert galaxy IC 5063. https://arxiv.org/abs/1504.04694

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