The detection of a large-scale ionised outflow in the local CON galaxy Zw049.057

Aims. Current co-evolutionary models of galaxies and their supermassive black holes (SMBHs) almost unanimously predict the existence of a heavily dust-obscured nuclear phase, critical in growing the SMBH and providing feedback to the host galaxy. However, this phase is poorly understood. Compact obscured nuclei (CONs) are relatively common in local (ultra-)luminous infrared galaxies and are the most obscured nuclei known to date, offering the opportunity to study the effects of such a dust-obscured phase on the galaxy. This work presents a case study of the local CON Zw049.057; we study the large-scale features of the galaxy and their connection to the ongoing activity of the central CON. Methods. We present new, targeted MUSE observations of the local CON galaxy Zw049.057, which is known to host multiple outflow features within its central few hundred parsecs. By mapping the kinematics of H α , we analysed the large-scale features of the galaxy. Results. For the first time, we identify a kiloparsec-scale ionised outflow in Zw049.057, traced by H α emission. Kinematics reveal the outflow to be blueshifted and orientated to the foreground of the stellar disk. The ionisation of this outflow is consistent with shock-heating, which may be related to the presence of a previously identified radio jet in the galaxy.

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Journal
Astronomy and Astrophysics
Published
2025-10-15
DOI
https://doi.org/10.1051/0004-6361/202453013
Primary Topic
Galaxies: Formation, Evolution, Phenomena
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article
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article

The detection of a large-scale ionised outflow in the local CON galaxy Zw049.057

S. König, Cláudio Ricci, S. del Palacio, F. Stanley et al.
Astronomy and Astrophysics
Galaxies: Formation, Evolution, Phenomena
article

The detection of a large-scale ionised outflow in the local CON galaxy Zw049.057

S. König, Cláudio Ricci, S. del Palacio, F. Stanley, C.F. Wethers, Y. Nishimura, R. Beswick, D. Rigopoulou, George C. Privon, M. Imanishi, Boy Lankhaar, C. Henkel, Françoise Combes, I. García-Bernete, S. Aalto, A. Evans, S. Muller, J. Gallagher, S. Linden, M. Sato, J. G. Mangum, Mark Gorski, Gustav Olander
article en

Abstract

Aims. Current co-evolutionary models of galaxies and their supermassive black holes (SMBHs) almost unanimously predict the existence of a heavily dust-obscured nuclear phase, critical in growing the SMBH and providing feedback to the host galaxy. However, this phase is poorly understood. Compact obscured nuclei (CONs) are relatively common in local (ultra-)luminous infrared galaxies and are the most obscured nuclei known to date, offering the opportunity to study the effects of such a dust-obscured phase on the galaxy. This work presents a case study of the local CON Zw049.057; we study the large-scale features of the galaxy and their connection to the ongoing activity of the central CON. Methods. We present new, targeted MUSE observations of the local CON galaxy Zw049.057, which is known to host multiple outflow features within its central few hundred parsecs. By mapping the kinematics of H α , we analysed the large-scale features of the galaxy. Results. For the first time, we identify a kiloparsec-scale ionised outflow in Zw049.057, traced by H α emission. Kinematics reveal the outflow to be blueshifted and orientated to the foreground of the stellar disk. The ionisation of this outflow is consistent with shock-heating, which may be related to the presence of a previously identified radio jet in the galaxy.

Astronomy and AstrophysicsVol. 704
Centre National de la Recherche Scientifique (FR), University of Arizona (US), King Abdulaziz University (SA), National Radio Astronomy Observatory (US), Université Paris Sciences et Lettres (FR), Observatoire de Paris (FR), University of Manchester (GB), University of Florida (US), Sorbonne Université (FR), University of Oxford (GB), Institut de Radioastronomie Millimétrique (FR), Centro de Astrobiología (ES), Astronomical Observatory (RS), Max Planck Institute for Radio Astronomy (DE), National Astronomical Observatory of Japan (JP), University of Virginia (US), Chalmers University of Technology (SE), The University of Tokyo (JP), Universidad Diego Portales (CL)
Openalex Percentile: Top 80%
Galaxies: Formation, Evolution, Phenomena
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