Searching for Compact Obscured Nuclei in Compton-thick Active Galactic Nuclei

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dc.article.number259
dc.catalogadoraba
dc.contributor.authorJohnstone, Makoto A.
dc.contributor.authorPrivon, George C.
dc.contributor.authorBarcos-Muñoz, Loreto
dc.contributor.authorEvans, A. S.
dc.contributor.authorAalto, S.
dc.contributor.authorArmus, Lee
dc.contributor.authorBauer, Franz Erik
dc.contributor.authorBlecha L.
dc.contributor.authorGallagher, J. S.
dc.contributor.authorKönig, S.
dc.contributor.authorRicci, Claudio
dc.contributor.authorTreister, Ezequiel
dc.contributor.authorEibensteiner, Cosima
dc.contributor.authorEmig, Kimberly L.
dc.contributor.authorGreen, Kara N.
dc.contributor.authorKunneriath, Devaky
dc.contributor.authorNagarajan-Swenson, Jaya
dc.contributor.authorSaravia, Alejandro
dc.contributor.authorYoon, Ilsang
dc.date.accessioned2025-06-19T21:10:48Z
dc.date.available2025-06-19T21:10:48Z
dc.date.issued2025
dc.description.abstractCompact obscured nuclei (CONs) are heavily obscured infrared cores that have been found in local (ultra-)luminous infrared galaxies. They show bright emission from vibrationally excited rotational transitions of HCN, known as HCN-vib, and are thought to harbor Compton-thick (CT, NH ≥ 1024 cm−2) active galactic nuclei (AGNs) or extreme compact starbursts. We explore the potential evolutionary link between CONs and CT-AGNs by searching for CONs in hard-X-ray-confirmed CT-AGNs from the Great Observatories All-sky LIRG Survey (GOALS). Here, we present new Atacama Large Millimeter/submillimeter Array Band 6 observations that targeted HCN-vib emission in four hard-X-ray-confirmed CT-AGNs. We analyze these objects together with literature HCN-vib measurements of five additional hard-X-ray-confirmed CT-AGNs from the GOALS sample. We do not detect any CONs in this combined sample of nine CT-AGNs. We then explore a proposed evolutionary sequence in which CONs evolve into X-ray-detectable CT-AGNs once outflows and feedback reduce the column densities of the enshrouding gas. We find, however, no evidence of well-developed dense molecular outflows in the observed CT-AGNs. While this could suggest that CT-AGNs are not universally linked to CONs, it could also be explained by a short duty cycle for molecular outflows.
dc.description.funderANID/FONDECYT No. 1200495; CATABASAL FB210003; Millennium Science Initiative Programs No. NCN19_058; ANID/Fondecyt No. 1230345; ANID BASAL No. FB210003
dc.fechaingreso.objetodigital2025-06-19
dc.format.extent16 páginas
dc.fuente.origenScopus
dc.identifier.doi10.3847/1538-4357/adcecb
dc.identifier.issn1538-4357
dc.identifier.scopusidScopus_ID:105006987617
dc.identifier.urihttps://doi.org/10.3847/1538-4357/adcecb
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/104723
dc.information.autorucInstituto de Astrofísica; Bauer, Franz Erik; 0000-0002-8686-8737; 1007961
dc.information.autorucInstituto de Astrofísica; Treister, Ezequiel; 0000-0001-7568-6412; 1031846
dc.issue.numero2
dc.language.isoen
dc.nota.accesocontenido completo
dc.publisherInstitute of Physics
dc.revistaAstrophysical Journal
dc.rightsacceso abierto
dc.rights.licenseCC BY Atribución Internacional 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.ddc510
dc.titleSearching for Compact Obscured Nuclei in Compton-thick Active Galactic Nuclei
dc.typeartículo
dc.volumen985
sipa.codpersvinculados1007961
sipa.codpersvinculados1031846
sipa.trazabilidadScopus;2025-06-15
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