Properties of the multiphase outflows in local (ultra)luminous infrared galaxies

Simple item page
dc.contributor.authorFluetsch, A.
dc.contributor.authorMaiolino, R.
dc.contributor.authorCarniani, S.
dc.contributor.authorArribas, S.
dc.contributor.authorBelfiore, F.
dc.contributor.authorBellocchi, E.
dc.contributor.authorCazzoli, S.
dc.contributor.authorCicone, C.
dc.contributor.authorCresci, G.
dc.contributor.authorFabian, A. C.
dc.contributor.authorGallagher, R.
dc.contributor.authorIshibashi, W.
dc.contributor.authorMannucci, F.
dc.contributor.authorMarconi, A.
dc.contributor.authorPerna, M.
dc.contributor.authorSturm, E.
dc.contributor.authorVenturi, G.
dc.date.accessioned2025-01-20T22:02:26Z
dc.date.available2025-01-20T22:02:26Z
dc.date.issued2021
dc.description.abstractGalactic outflows are known to consist of several gas phases; however, the connection between these phases has been investigated little and only in a few objects. In this paper, we analyseMulti Unit Spectroscopic Explorer (MUSE)/Very Large Telescope (VLT) data of 26 local (U)LIRGs and study their ionized and neutral atomic phases. We also include objects from the literature to obtain a sample of 31 galaxies with spatially resolved multiphase outflow information. We find that the ionized phase of the outflows has on average an electron density three times higher than the disc (n(e,disc) similar to 145 cm(-3) versus n(e,outflow) similar to 500 cm(-3)), suggesting that cloud compression in the outflow is more important than cloud dissipation. We find that the difference in extinction between outflow and disc correlates with the outflow gas mass. Together with the analysis of the outflow velocities, this suggests that at least some of the outflows are associated with the ejection of dusty clouds from the disc. This may support models where radiation pressure on dust contributes to driving galactic outflows. The presence of dust in outflows is relevant for potential formation of molecules inside them. We combine our data with millimetre data to investigate the molecular phase. We find that the molecular phase accounts for more than 60 per cent of the total mass outflow rate in most objects and this fraction is higher in active galactic nuclei (AGN)-dominated systems. The neutral atomic phase contributes of the order of 10 per cent, while the ionized phase is negligible. The ionized-to-molecular mass outflow rate declines slightly with AGN luminosity, although with a large scatter.
dc.fuente.origenWOS
dc.identifier.doi10.1093/mnras/stab1666
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/stab1666
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93983
dc.identifier.wosidWOS:000698554000061
dc.issue.numero4
dc.language.isoen
dc.pagina.final5783
dc.pagina.inicio5753
dc.revistaMonthly notices of the royal astronomical society
dc.rightsacceso restringido
dc.subjectISM: evolution
dc.subjectgalaxies: active
dc.subjectgalaxies: evolution
dc.subjectgalaxies: ISM
dc.titleProperties of the multiphase outflows in local (ultra)luminous infrared galaxies
dc.typeartículo
dc.volumen505
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas