Ionized gas outflows in the interacting radio galaxy 4C +29.30. Issue Volume 15:Issue S359(2020) (March 2019)

• Record Type: Journal Article
• Authors: Couto, Guilherme S.; Storchi-Bergmann, Thaisa; Siemiginowska, Aneta; Riffel, Rogemar A.
• Editors: Bergmann, Thaisa Storchi; Forman, William; Overzier, Roderik; Riffel, Rogério
• Is Part Of: Proceedings of the International Astronomical Union. Volume 15:Issue S359(2020)
• Page Start: 262
• Page End: 264
• Publication Date: 2019-03
• Subjects: galaxies: individual: 4C +29.30, -- galaxies: active, -- galaxies: nuclei, -- galaxies: kinematics and dynamics, -- galaxies: jets; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921320002112
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: We investigate the ionized gas excitation and kinematics in the inner 4.3 × 6.2 kpc 2 of the merger radio galaxy 4C +29.30. Using optical integral field spectroscopy with the Gemini North Telescope, we find signatures of gas outflows, including high blueshifts of up to ∼−650 km s −1 observed in a region ∼1″ south of the nucleus, which also presents high velocity dispersion (∼250 km s −1 ). A possible redshifted counterpart is observed north from the nucleus. 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 $\[{\dot M_{out}} = 18.1\begin{array}{c} + 8.2\\ - 5.3\end{array}{\kern 1pt} {\kern 1pt} \]$ with a kinetic power of $\[\dot E = 5.8\begin{array}{c} + 7.6\\ - 2.9\end{array} \times {10^{42}}{\kern 1pt} {\kern 1pt} \]$, which represents $\[3.9\begin{array}{c} + 5.1\\ - 1.5\end{array}\% \]$ of the AGN bolometric luminosity. These values are higher than usually observed in nearby active galaxies and could imply a significant impact of the outflows on the evolution of the host galaxy.