Molecular Gas in Major Mergers Hosting Dual and Single AGNs at

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dc.catalogadorvzp
dc.contributor.authorJohnstone, Makoto A.
dc.contributor.authorTreister, Ezequiel
dc.contributor.authorBauer, Franz E.
dc.contributor.authorChin-Shin Chang
dc.contributor.authorCicone, Claudia
dc.contributor.authorKoss, Michael J.
dc.contributor.authorDel Moral Castro, Ignacio
dc.contributor.authorMuller Sanchez, Francisco
dc.contributor.authorPrivon, George C.
dc.contributor.authorRicci, Claudio
dc.contributor.authorScoville, Nick
dc.contributor.authorVenturi, Giacomo
dc.contributor.authorBarcos Muñoz, Loreto
dc.contributor.authorArmus, Lee
dc.contributor.authorBlecha, Laura
dc.contributor.authorCasey, Caitlin
dc.contributor.authorComerford, Julia
dc.contributor.authorEvans, Aaron
dc.contributor.authorKawamuro, Taiki
dc.contributor.authorMedling, Anne M.
dc.contributor.authorMessias, Hugo
dc.contributor.authorNagar, Neil
dc.contributor.authorRojas, Alejandra
dc.contributor.authorSanders, David
dc.contributor.authorTrakhtenbrot, Benny
dc.contributor.authorU, Vivian
dc.contributor.authorUrry, Meg
dc.date.accessioned2025-12-19T15:02:30Z
dc.date.available2025-12-19T15:02:30Z
dc.date.issued2025
dc.description.abstractWe present high-resolution (∼50–100 pc) Atacama Large Millimeter/submillimeter Array observations of 12CO(2–1) or 12CO(1–0) emission in seven local (z ≲ 0.05) major mergers—five of which are dual active galactic nucleus (AGN) systems, and two of which are single AGN systems. We model the molecular gas kinematics through rotating disk profiles using a Bayesian Markov Chain Monte Carlo approach. The residuals were then used to isolate nonrotating components of the molecular gas—the most likely contributor to future supermassive black hole (SMBH) growth. We find that more-massive SMBHs have higher surface densities of nonrotating molecular gas within their sphere of influence. This potential molecular gas supply, however, does not correlate with the current accretion efficiency of the SMBHs, suggesting that only a fraction of the observed nonrotating gas is currently reaching the SMBH. Finally, we tentatively find no significant differences in the nuclear molecular gas masses of single-AGN and dual-AGN hosts, both within the SMBH sphere of influence and within the central kiloparsec. Our results indicate that the probability of occurrence of the dual AGN phenomenon is likely dependent on AGN variability and/or obscuration rather than the availability of molecular gas in the nuclear regions.
dc.fechaingreso.objetodigital2025-12-19
dc.format.extent32 páginas
dc.fuente.origenORCID
dc.identifier.doi10.3847/1538-4357/ae1600
dc.identifier.urihttps://doi.org/10.3847/1538-4357/ae1600
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/107460
dc.information.autorucInstituto de Astrofísica; Treister , Ezequiel; 0000-0001-7568-6412; 1031846
dc.information.autorucInstituto de Astrofísica; Del Moral Castro, Ignacio; S/I; 1338260
dc.issue.numero1
dc.language.isoen
dc.nota.accesocontenido completo
dc.revistaThe Astrophysical Journal
dc.rightsacceso abierto
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.ddc520
dc.subject.ods09 Industry, innovation and infrastructure
dc.subject.odspa09 Industria, innovación e infraestructura
dc.titleMolecular Gas in Major Mergers Hosting Dual and Single AGNs at
dc.typeartículo
dc.volumen995
sipa.codpersvinculados1031846
sipa.codpersvinculados1338260
sipa.trazabilidadORCID;2025-12-15
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