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FältnamnIndikatorerMetadata
00006130naa a2200625 4500
001oai:research.chalmers.se:64065ded-f46f-415c-a13a-97ccab5eb2d9
003SwePub
008240313s2024 | |||||||||||000 ||eng|
0247 a https://research.chalmers.se/publication/5403062 URI
0247 a https://doi.org/10.1051/0004-6361/2023472072 DOI
040 a (SwePub)cth
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Wethers, Clare,d 1991u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)wethers
2451 0a Double, double, toil, and trouble: The tails, bubbles, and knots of the local compact obscured nucleus galaxy NGC 4418
264 1c 2024
338 a electronic2 rdacarrier
520 a Context. Compact obscured nuclei (CONs) are an extremely obscured (NH2>1025 cm-2) class of galaxy nuclei thought to exist in 20-40 per cent of nearby (ultra-)luminous infrared galaxies While they have been proposed to represent a key phase of the active galactic nucleus (AGN) feedback cycle, the nature of these CONs -what powers them, their dynamics, and their impact on the host galaxy -remains unknown. Aims. This work analyses the galaxy-scale optical properties of the local CON NGC 4418 (z=0.00727). The key aims of the study are to understand the impact of nuclear outflows on the host galaxy and infer the power source of its CON. Through the mapping of the galaxy spectra and kinematics, we seek to identify new structures in NGC 4418 to ultimately reveal more about the CON's history, its impact on the host, and, more generally, the role CONs play in galaxy evolution. Methods. We present new, targeted integral field unit observations of the galaxy with the Multi-Unit Spectroscopic Explorer (MUSE). For the first time, we mapped the ionised and neutral gas components of the galaxy, along with their dynamical structure, to reveal several previously unknown features of the galaxy. Results. We confirm the presence of a previously postulated, blueshifted outflow along the minor axis of NGC 4418. We find this outflow to be decelerating and, for the first time, show it to extend in both directions from the nucleus. We report the discovery of two further outflow structures: a redshifted southern outflow connected to a tail of ionised gas surrounding the galaxy and a blueshifted bubble to the north. In addition to these features, we find the [OIII] emission reveals the presence of knots across the galaxy, which are consistent with regions of the galaxy that have been photoionised by an AGN. Conclusions. We identify several new features in NGC 4418, including a bubble structure, a reddened outflow, and [OIII] knot structures throughout the galaxy. We additionally confirm the presence of a bilateral blueshifted outflow along the minor axis. Based on the properties of these features, we conclude that the CON in NGC 4418 is most likely powered by AGN activity.
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
650 7a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng
653 a Galaxies: evolution
653 a Galaxies: active
653 a Galaxies: nuclei
7001 a Aalto, Susanne,d 1964u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)saalto
7001 a Privon, G.u National Radio Astronomy Observatory,University of Florida,University of Virginia4 aut
7001 a Stanley, F.u Institut de Radioastronomie Millimétrique (IRAM)4 aut
7001 a Gallagher III, J. S.u University of Wisconsin Madison4 aut
7001 a Gorski, Mark,d 1989u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)markgo
7001 a König, Sabine,d 1983u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)ksabine
7001 a Onishi, Kyoko,d 1989u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)kyokoo
7001 a Sato, Mamiko,d 1982u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)mamiko
7001 a Yang, Chentao,d 1988u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)chentao
7001 a Beswick, R. J.u University of Manchester4 aut
7001 a Barcos-Munoz, Loretou University of Virginia4 aut
7001 a Combes, F.u Observatoire de Paris,Paris Observatory4 aut
7001 a Diaz-Santos, T.4 aut
7001 a Evans, A. S.u University of Virginia,National Radio Astronomy Observatory4 aut
7001 a García-Bernete, I.u University Of Oxford4 aut
7001 a Henkel, C.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),King Abdulaziz University4 aut
7001 a Imanishi, M.u National Astronomical Observatory of Japan4 aut
7001 a Martin, S.u European Southern Observatory Santiago,Atacama Large Millimeter-submillimeter Array (ALMA)4 aut
7001 a Muller, S.4 aut
7001 a Nishimura, Y.u University of Tokyo, Japan4 aut
7001 a Ricci, C.u Universidad Diego Portales,Diego Portales University,Beijing University of Technology4 aut
7001 a Rigopoulou, D.u National Radio Astronomy Observatory4 aut
7001 a Viti, Serenau University College London (UCL),Universiteit Leiden (UL),Leiden University (UL)4 aut
7102 a Chalmers tekniska högskolab National Radio Astronomy Observatory4 org
7730 t Astronomy and Astrophysicsg 683q 683x 0004-6361x 1432-0746
8564 u https://research.chalmers.se/publication/540306/file/540306_Fulltext.pdfx primaryx freey FULLTEXT
8564 8u https://research.chalmers.se/publication/540306
8564 8u https://doi.org/10.1051/0004-6361/202347207

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