Large-Scale Features of the CON Galaxy NGC4418 with MUSE
Artikel i vetenskaplig tidskrift, 2023
Compact obscured nuclei (CONs) are relatively common in the centers of local (U)LIRGs, yet their nature remains unknown. Both AGN activity and extreme nuclear starbursts have been suggested as plausible nuclear power sources. The prevalence of outflows in these systems suggest that CONs represent a key phase in the nuclear feedback cycle, in which material is ejected from the central regions of the galaxy. Here, we present results from MUSE for the confirmed local CON galaxy NGC4418. For the first time we spatially map the spectral features and kinematics of the galaxy in the optical, revealing several previously unknown structures. In particular, we discover a bilateral outflow along the minor axis, an outflowing bubble, several knot structures and a receding outflow partially obscured by the galactic disk. Based on the properties of these features, we conclude that the CON in NGC4418 is most likely powered by an AGN.
galaxies: evolution
ISM: jets and outflows
galaxies: active
Författare
Clare Wethers
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
Susanne Aalto
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
G. Privon
College of Liberal Arts and Sciences
National Radio Astronomy Observatory
University of Virginia
F. Stanley
Institut de Radioastronomie Millimétrique (IRAM)
J. S. Gallagher III
University of Wisconsin Madison
Mark Gorski
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
Sabine König
Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium
Kyoko Onishi
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
Chentao Yang
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
Proceedings of the International Astronomical Union
1743-9213 (ISSN) 1743-9221 (eISSN)
Vol. 19 30-33Ämneskategorier (SSIF 2025)
Atom- och molekylfysik och optik
Astronomi, astrofysik och kosmologi
DOI
10.1017/S1743921323002922